Manchester United's season will be a success even if they lose the Europa League final, says boss Jose Mourinho.

But Mourinho accepts it would "make sense" for the season to be viewed as a failure if United, who edged out Celta Vigo to reach the final, lose to Ajax.
Mourinho, 54, became the first manager in United history to win a major trophy in his first season when he claimed the EFL Cup in February.
"We did things nobody did in this club in the first season," said Mourinho.
The Portuguese guided his team to a record 25-game unbeaten run in the Premier League before it was ended by Arsenal on Sunday to dent their hopes of qualifying for the Champions League.
Mourinho believes his side, currently sixth in the Premier League, will not now finish in the top four so must win the Europa League to reach next season's Champions League.
When asked if the result of the 24 May final in Stockholm would determine whether United's season was a success or failure, he said the media "have the right to say it and it makes sense to say it, but I don't feel like that".
"We have these things, but [the media] are always looking at these kind of capital letters, big headlines," added the former Chelsea and  Real Madrid manager.
"I probably work, this season, harder than ever. When I analyse, I don't think [losing the final would be failure], but if I was in your chair, maybe."
Sergio Romero is set to start for United in the Europa League final, with Mourinho saying there was "no dilemma" in sticking with the Argentina goalkeeper in favour of regular first-choice David de Gea.
Spain's De Gea, 26, played three games during the group stages but Romero, 30, has started each Europa League tie since the last-32 stage.
"I never saw in all my career two goalkeepers to be so friendly because it is a position when you always have a little bit of rivalry, especially if you are both the same kind of level," said Mourinho.
"I think it is fair Sergio is going to play the final and David accepts, because he has already played Europa League matches and if we win the trophy, David wins the trophy."
Centre-back Eric Bailly will miss the final after being sent off late on against Celta Vigo, with Mourinho anticipating Uefa rules will not "allow any chance of an appeal".
He added that Bailly, 23, will now play in United's three remaining Premier League fixtures to "give rest to some of the others", with the final match at home against Crystal Palace three days before the Europa League final.


British number one Johanna Konta is out of Wimbledon after losing 6-3 1-6 6-1 to 2014 finalist Eugenie Bouchard.

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The Australian Open semi-finalist had fought back from a disappointing first set to take the match to a decider.
But in front of a Centre Court crowd earlier treated to a masterclass from British men's number one Andy Murray, she was quickly broken twice more.
It marked a sweet Wimbledon return for Canadian Bouchard, beaten by qualifier Duan Yingying in the 2015 first round.
"I went in with no real expectations of an outcome," said Konta. "I definitely expected her to play well.
"Although her ranking may have gone down over the past year, her level of tennis never went away. She is an incredibly good player with a lot of experience, in the short career she's had.
"I've got a lot of good things to take away from that match and a lot of things I hope to implement in my development as a tennis player and as a person."
Konta, 25, had broken Bouchard early in the first set for a 2-1 lead, only to then ship the next four games as her opponent's greater accuracy from the baseline began to tell.
With that accuracy and power came the first set, and Konta's hopes looked to be disappearing in the fresh evening air.
But she broke again in Bouchard's opening service game of the second set, and under intense pressure this time held her own in the next game.
The 22-year-old then raced into a 0-40 lead on Konta's next service only for the Briton to once again fight back, saving a series of break points.
And Konta kept the momentum going with a break to love in the sixth game before holding serve to level the match up.
Still the service pressure came. Konta once again slipped to 0-40 on her own serve early in the third and this time saw it taken as Bouchard ended a magnificent rally with a stretching forehand volley.
Bouchard had climbed as high as five in the world before a precipitous decline over the past 18 months, and that raw talent bloomed again as she took further control with a second break for 4-0 in the decider.
Konta, so vastly improved in the past 12 months, was unable to work a break point as the contest slipped away from her, and in this form Bouchard will pose a serious threat in her half of the draw.
Sam Smith, former British number one and BBC Sport commentator
"Konta played pretty well but Bouchard was looking like a top-10 player out there.
"Konta's forehand looked more vulnerable than I've seen for a while, and it was a shame because she had great momentum coming out of the second set.
"It was important to get an early break in the third, hold and then she would have been driving it. There was not an awful lot in it.
"Bouchard, even though she is three years younger, is more experienced in these big stadium situations and that counted for a lot.
"Bouchard looked even better than 2014. If she can maintain that and gets through in a tough draw against Dominika Cibulkova then she is a contender.
"But Konta has won her first match at Wimbledon in four attempts, that's a big step, had a great Eastbourne and is a top-20 player in the world. She wasn't quite good enough today and I think you can accept that."


American runner Abbey D'Agostino ran more than a mile to complete her Olympic 5,000m heat despite tearing her anterior cruciate knee ligament.

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D'Agostino, 24, collided with New Zealand's Nikki Hamblin during qualifying in Rio on Tuesday.
Hamblin was left in tears but the pair encouraged each other to continue, despite D'Agostino visibly limping.
The American ran four laps with a torn ACL but will miss Friday's final because of the injury.
D'Agostino managed a few steps after helping Hamblin to her feet before falling to the track, with the New Zealander returning the favour and helping her rival up.
The American hobbled over the finish line, with the two embracing before both runners were put through to the final by the track officials.
However, D'Agostino, who left the arena in a wheelchair, will miss the rest of the season.
"By far the best part of my experience of the Olympics has been the community it creates and what the Games symbolises," D'Agostino said.


A girls' secondary school in south London has won the Riba Stirling Prize, the UK's leading architecture award.

Burntwood School in Wandsworth was rebuilt between 2011 and 2014 at a cost of £40.9m, to a design by architects Allford Hall Monaghan Morris.
The Stirling Prize judges said it was the "clear winner".
They said it was the "most accomplished of the six shortlisted buildings" and showed "the full range of the skills that architects can offer to society".
The judges added: "Burntwood sets a standard in school design that every child in Britain deserves.
"It is a culmination of many years of creative toil by Allford Hall Monaghan Morris in designing schools up and down the country. This is their masterpiece."
Burntwood School was one of the last projects under the Building Schools for the Future scheme, which was scrapped by the government in 2010.
Michael Gove, education secretary at the time, gave permission for the work to go ahead despite the end of the policy.
Six new buildings were erected on the school campus - four four-storey "teaching pavilions", a sports hall and a performing arts centre.
They replaced most of the school's original 1958 buildings. The new complex also includes a covered walkway fashioned from off-the-peg bus-stops and colourful murals throughout the buildings.
Royal Institute of British Architects (Riba) president Jane Duncan said it "shows us how superb school design can be at the heart of raising our children's educational enjoyment and achievement".
Allford Hall Monaghan Morris have created "delightful, resourceful and energy efficient buildings that will benefit the whole community in the long term", she said.
"With the UK facing a huge shortage of school places, it is vital we learn lessons from Burntwood."
Allford Hall Monaghan Morris director Paul Monaghan said schools should be "more than just practical, functional buildings", and good design "makes a difference to the way students value themselves and their education".
Burntwood School principal Helen Dorfman said: "The whole Burntwood School community is delighted and proud that the scheme has been recognised as being worthy of the Stirling Prize.
"Staff and students have said on many occasions that the new buildings have greatly improved the quality of their day-to-day experiences at the school and students comment that their commitment to learning has been enhanced."
The award was handed out at a ceremony in London on Thursday.
The Whitworth art gallery in Manchester topped a BBC readers' vote, gaining 38% of all votes of the shortlisted buildings, with Maggie's Centre, Lanarkshire in second place.
Explore the other buildings on the shortlist


Jamie Murray's doubles partner Bruno Soares says it is "just a bad excuse" for Olympians to pull out of Rio because of fears over the Zika virus.

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Several top golfers, including world number one Jason Day and Rory McIlroy, have withdrawn because of concerns.
But Soares, who plays with Murray in a Wimbledon doubles quarter-final on Wednesday, played down the issue.
"For me it's just a bad excuse from the athletes. We all know it's not that bad," the Brazilian told BBC Scotland.
"We had, I think, 15,000 athletes already in Rio - zero athletes got the virus.
"If you go to Brazil and see the people, we're not changing our lifestyle or anything. We're just trying to stop that [the Zika virus]. It's just a problem we've been having but it's not the end of the world right now."
The Zika virus, which is mosquito-borne, has been linked to defects in newborn babies and has led to calls that the Games should be moved from Rio.
But Olympic chiefs and the World Health Organisation have issued guidance for athletes and visitors to Rio, adding that the risk of catching Zika is low.
"We do have a lot of problems in Brazil," Soares acknowledged. "I don't think any of the problems are going to damage the Olympic experience we're going to have there.
"I think they've just got to focus on the positive part of it. Rio is one of the most beautiful cities in the world. The people are very, very happy to have the Olympics there, to welcome all the athletes. It really would be nice if all the people just concentrate on the positive side of the Games."
Murray, who along with brother Andy has been named in Britain's tennis squad for Rio, is happy to take the advice issued to Team GB athletes by the British Olympic Association.
"I'm going," he told BBC Scotland. "Of course there are issues. I'm sure a lot of it is built up in the media as well, but we're getting information from the right people at the BOA and we trust what they're saying, their judgement.
"I'm sure it's going to be a great Games, a great Olympic experience for all the athletes and I'm excited to be a part of it."
Murray and Soares play French pair Julien Benneteau and Edouard Roger-Vasselin on Wimbledon's Court 18, around 13:00 BST on Wednesday, after coming through a five-hour epic to reach the last eight.
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A Flintshire man whose care package stopped after care workers complained of his "inappropriate behaviour" has been awarded £3,750 in compensation.

The Public Services Ombusman for Wales ruled "Mr X" was failed by both Flintshire council and Betsi Cadwaladr University Health Board.
Mr X complained allegations against him were never put to him and he was denied payments to arrange his own care.
The council and health board both admitted failings in the case.
A report found the council was first aware of the allegations made by carers against Mr X in 2011 but had taken no action as it was considered a matter for the health board.
A new private care company began delivering a care package two months later, funded by Betsi Cadwaladr.
Further complaints about Mr X's behaviour were made in November 2013  but Mr X was not made aware of them, and he cancelled the care package two months later because he was dissatisfied with the service, the report said.
In 2014, the health board and council made inquiries with the company about the allegations and meetings were held to discuss his case.
An application for direct payments by Mr X was refused in April 2014 and he relied on help from a friend unitl June 2015.
Mr X made complaints to the health board in November 2014 and the council in May 2015, with the council saying the health board had to finish its inquiries into the allegations against him first.
The Ombusdman's investigating officer Steve Brisely found the council had failed to pass on the complaints to the health board in 2011 which would have enabled an investigation to take place then.
The eventual investigation was inadequate, he added.
"It clearly would have been fair to put the allegations to Mr X in order for him to refute them, to provide his account of events or to modify his behaviour," said the report. "I consider the failure to provide him with such an opportunity to be contrary to both natural justice and simple good practice."
In its response to the Ombudsman, the council accepted it had taken too long to respond to the complaint while the health board admitted it had no specific policy on how to deal with allegations where the care package was provided by an external company.


Ireland completed their World Twenty20 preparations with a six-wicket defeat by Zimbabwe in Dharamsala on Saturday.

The Irish posted a modest total of 155-8, with Gary Wilson (38) and William Porterfield (31) the main contributors.
Hamilton Masakadza hit six sixes in his 68 which set Zimbabwe on their way to victory, with 160-4 in 17.5 overs.
Ireland start their World T20 Group A campaign in Dharamsala on Wednesday against Oman followed by encounters with Bangladesh and the Netherlands.
The winners progress to Group 2 in the Super 10 stage and games against hosts India, Australia, New Zealand and Pakistan.
Ireland eased to a 10-wicket victory over Hong Kong in their opening warm-up match in Dharamsala on Thursday.


Kenny McLean is eager to follow up his Scotland debut with more caps after playing in the 1-0 win over Czech Republic.

The Aberdeen midfielder, 24, started in Prague and was withdrawn just before the hour mark as Gordon Strachan's side won their first match of 2016.
"When you get a taste, you always want more," McLean told BBC Scotland.
"I've enjoyed the few days. It's what everybody wants and I hope I can just stay here."
Ikechi Anya's early goal proved to be enough for Scotland in Prague.
"The boys dug in and we got the win, which was great," McLean said.
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"First half was a bit tricky but second half, we were a lot better. We controlled the game in parts.
"It was obviously great to make my debut from the start.
"I felt good for the time I was on the pitch. I didn't feel out of place at all and it's where I want to be."
Strachan selected two squads for the matches against Czech Republic and Denmark, with the latter visiting Hampden on Tuesday.
Hibernian midfielder John McGinn - a former St Mirren team-mate of McLean's - is in the squad to face the Danes and could make his senior international debut in Glasgow.
"Hopefully he can do well enough and stay in," McLean said of 21-year-old McGinn. "You just need to enjoy moments like this - ones you need to cherish."
Alan Hutton, 31, won his 50th Scotland cap in Prague and the Aston Villa full-back described it as "a great honour".
"I never once really thought I'd get this many," he explained. "To get to 50 is a dream come true, really."
Ross McCormack, a late call-up to the squad, set up Anya's goal.
"To get a 1-0 win, we've got to be happy," the 29-year-old Fulham forward said.
"I just had to be strong with the two centre-halves and try and get them out the way.
"To be honest, I didn't see Ikechi, I just heard his shout so I thought if I can get it in that space, with his pace, if it's a foot race he's always going to win. When he got there, he thankfully tucked it in.
"Thankfully, the manager gave me a chance and I enjoyed it."


"Wet suits are frowned upon... you're not allowed a wet suit."

The Clevedon sea swimmers - come rain, shine or even snow - are continuing to keep a tradition alive that has been going on since the 1930s.
On an almost daily basis they don bright coloured swimming hats and battle the elements to swim in the sea at the Somerset resort before drying off and warming up with a cup of hot chocolate.
Sometimes they are only in the water for a matter of minutes, other days they will swim around the pier, depending on the tides and weather.
Now their morning outings have been captured by news and feature photographer Brad Wakefield, from Burnham-on-Sea.
Mr Wakefield, 26, said: "I have grown to love their attitude and sheer embrace of their surroundings.
"I have witnessed their pure dedication first hand, swimming through all weather as the seasons have changed from beautiful blue skies to painfully cold, snowy days."
The group of swimmers - aged 30 to 80 years old - swells in size from nine or ten in the winter to 20 or 30 in the summer.
Self-confessed as "totally mad", the "all year rounders", say the cold makes it all the more fun.
"I don't like swimming in swimming pools now, it's just too warm,"  former primary school teacher Dee Hamilton-Jones said.
"It all started with a conversation about swimming hats.
"I asked one of the members 'where did you get your swim hat?' and she said 'you must come down', but this was winter time and she said, 'don't start now, start in May', that's the best time to start."
Dee, 71, swims alongside her husband, 66-year-old Richard.
"The theory is, if you can cope with going in the British sea in the summer, the next day it only gets a little bit colder than the previous day," Mr Hamilton-Jones said.
"And if you keep going and keep going, you think, 'ok, it's December 31, but it can't be much colder than the day before'.
"It is absolutely wonderful. Somebody once said it's like having a high on oxygen."
The Clevedon Sea Swimming Photographic Exhibition will run from 9 March to 24 March at the Toll House Gallery on Clevedon Pier.


China's navy has taken delivery of the first of a new kind of stealth frigate, as tension continues with neighbouring countries over maritime borders.

The Type 056 stealth frigate has a sleek design that helps it evade radar detection, and needs just one-third of the crew used by its predecessor.
The first ship was delivered to the Chinese navy in Shanghai on Monday, state-run news agency Xinhua said.
China said the new vessel is part of a systematic upgrading of naval hardware.
The frigate -  one of 20 being built - will mainly be deployed on escort missions and for anti-submarine operations.
Xinhua said it would enhance the country's ability to safeguard national security and defend maritime sovereignty.
The arrival of the new vessel comes at a time when China is in dispute with a number of neighbouring countries over national boundaries in the East and South China Seas.
Mostly recently Beijing has been arguing with Tokyo over the Senkaku Islands - known as the Diaoyu Islands in Chinese - which are controlled by Japan but also claimed by China.
Beijing is in the middle of a programme to improve its navy, launching its first aircraft carrier, Liaoning, two years ago, the BBC's Michael Bristow reports.
Chinese President Hu Jintao said last year that the country needed to transform itself into a "maritime power".


Police have launched a murder inquiry after a man was found injured near a boating lake.

Brendon Mason, 23, of Glenfield, Leicestershire, was discovered near Abbey Park's lake in the city at 08:10 BST on Tuesday. He died later in hospital.
A post-mortem examination revealed he died as a result of a head injury.
A 27-year-old man has been arrested in connection with the death and bailed, Leicestershire Police said.
Updates on this story and more from Leicestershire
The force has reopened the park, but two areas within the park remain cordoned off.
Det Ch Insp Mick Graham said: "Brendon was seen in Tournament Road, Glenfield, between 16.25 BST and 17:00 BST on Monday afternoon, before heading off towards a bus stop near to a supermarket in Dominion Road.
"We are working to piece together Brendon's movements... and want to hear from anyone who remembers seeing him, or a man matching his description."
Mr Mason had short blonde hair and was about 5ft 7ins tall, officers said.
He was last seen wearing grey canvas tracksuit bottoms and a navy blue Adidas tracksuit top. He also was carrying a black Puma backpack.
The force said detectives were trawling CCTV footage and following a number of lines of enquiry as part of the investigation.


The Bloodhound Super Sonic Car has just had a key engine fitting.

Its Rolls-Royce EJ200 turbofan has been slotted into the vehicle's upper-chassis for the first time.
Engineers need to check the power unit will sit comfortably inside the car with the correct clearances.
The EJ200 is normally seen in a Eurofighter, but Bloodhound will use the engine to help it break the world land speed record (763mph) and then raise the mark beyond 1,000mph.
The project is currently on course to try to achieve the first stage in this double quest at the end of the year.
Major components are in the process of being manufactured with some of the UK's top aerospace companies.
As soon as these parts arrive at Bloodhound's technical centre in Bristol, they are bolted in place.
The UK Ministry of Defence has loaned three EJ200s to the project. These are early development models that have no combat use.
The Rolls-Royce units develop about 20,250 lbf (90 kN / 9 tonnes) with reheat. This on its own, however, is not enough to push Bloodhound into the record books.
The EJ200 will be used to get the car rolling. Once it reaches 350mph, a Jaguar V8 engine will accelerate, a clutch will engage and nearly 1,000 litres of HTP oxidiser will be pumped into a catalyst pack, bringing a rocket on stream.
It is the combined thrust of the EJ200 and this booster - produced by Nammo in Norway - that will propel Bloodhound through the sound barrier and on to speeds never before achieved by a land vehicle.
All of the jet thrust is reacted through a single hollow thrust trunnion (fixing) just 32.5mm in diameter, with a wall thickness of only 3.25mm. The EJ200 hangs from this mounting point.
Although Bloodhound SSC is nearly 13m long, space inside the car is at a premium, and the clearance between the EJ200 and the chassis in some areas is a mere 10mm.
The EJ200 intake cannot cope with an airflow of 1,000mph (1,610km/h). This rush of air could damage its fan blades.
So the car's designers have shaped the car's cockpit to create a series of shockwaves that slow the air down to 600mph (965km/h).
While the jet engine will be comfortable with this, the same may not be true for driver Andy Green. The noise this maelstrom of air makes will be immense.
The car's upper-chassis - which houses the EJ200 - is made from aluminium machined ribs with titanium stringers.
The titanium skin is held together by 11,500 aerospace grade rivets - everyone hand fixed and polished - and also bonded with special glue.
It would be sufficiently strong with either rivets or bonding, but the Bloodhound engineers have combined the two for extra security.
The project expects to have the finished car on the runway at the Newquay aerodrome in Cornwall for shakedown tests in August.
Assuming this goes well, the vehicle will then be shipped to South Africa to begin its record bid using a "race track" that has been prepared on Hakskeen Pan, a dried out lakebed in Northern Cape.
Andy Green set the current land speed record in the Thrust SSC vehicle in the Black Rock Desert in Nevada, US, in 1997.
The RAF Wing Commander is one of three central figures from that earlier venture working on Bloodhound. The other two are project director Richard Noble, and chief aerodynamicist, Ron Ayers.
Jonathan.Amos-INTERNET@bbc.co.uk and follow me on Twitter: @BBCAmos


About 2,000 British Airways cabin crew have voted overwhelmingly for strikes in a dispute over pay, the Unite union said.

The workers, who represent about 15% of the airline's cabin crew, were balloted about the plan to strike at Heathrow.
The vote comes after cabin crew rejected a 2% pay rise.
Strike action could begin after 21 December, but Unite has not confirmed whether the strike would affect travellers over Christmas.
BA said Unite was "creating uncertainty" for passengers.
Tensions have been running high over pay and conditions at the airline.
Some 79% of crew that took part in the ballot voted for action, Unite said, urging British Airways to return to the negotiating table.
The dispute concerns about 4,000 staff who have joined the airline since 2010 on "Mixed Fleet" contracts, who do not feel they are paid enough. About  2,500 of them are Unite members.
Earnings were advertised between £21,000 and £25,000 but, in reality, start at just over £12,000 plus £3 an hour flying pay, Unite said.
"Not surprisingly, the crew have rejected a 2% pay offer and on-board customer service managers are furious," the union said.
"They do not have collective bargaining rights. The managers have also endured a six-year pay freeze."
According to a recent Unite survey, half of Mixed Fleet staff have taken on second jobs to make ends meet, and more than two-thirds were going to work "unfit to fly" because they could not afford to be off sick.
It said 84% reported experiencing stress and depression since joining BA because of their financial circumstances.
Some even admitted sleeping in cars between flights, because they could not afford the petrol to get home.
Unite regional officer Matt Smith said: "Not only are the pay rates indefensible, but in aviation, low pay is a safety issue."
A BA spokesman said: "We are extremely disappointed that the union is creating uncertainty for our customers.
"Mixed Fleet Unite represents about 15% of our cabin crew. We remain focused on resolving this issue as quickly as possible without any disruption to customers."
The spokesman added: "We have proposed a fair and reasonable pay increase to Mixed Fleet cabin crew which is in line with that accepted by other British Airways colleagues and which will ensure their reward levels remain in line with cabin crew at our airline competitors."


The US military's top commander in the Pacific has said an advanced missile defence system in South Korea aims to bring North Korean leader Kim Jong-un "to his senses, not to his knees".

Adm Harry Harris, head of US Pacific Command, told Congress the US would be ready "with the best technology" to defeat any North Korean missile threat.
The US has also deployed warships and a submarine to the Korean peninsula.
China argues that the US Thaad missile system will destabilise security.
Three people were hospitalised after protesters clashed with police as the anti-missile system was being delivered to a former golf course in South Korea on Wednesday.
Tensions have been rising amid fears North Korea could be planning further missile or nuclear tests.
Speaking ahead of a classified briefing for senators at the White House, Adm Harris said the advanced missile defence system would be ready within the coming days.
He said he believed that North Korea would try to attack the US as soon as it has the military capabilities.
"With every test [Mr] Kim grows closer to his goal, which is using nuclear weapons on US cities," he told the House armed services committee in Washington DC.
"As [US President Donald] Trump and [Defence Secretary James] Mattis have said, all options are on the table," he added.
Adm Harris said that the relationship between Mr Trump and Chinese President Xi Jinping remained "positive and encouraging".
"It is purely a defensive system. It is aimed north, not west," he said, adding: "It poses no threat to China."
His comments come after China launched its second aircraft carrier in the latest sign of its growing military strength.
The as-yet unnamed ship was transferred into the water in the north-eastern port of Dalian, state media said. It will reportedly be operational by 2020.
The heated rhetoric between the US and North Korea has intensified in recent weeks.
China's Foreign Minister, Wang Yi, has called for an end to US-South Korea war games and also a halt to North Korea's nuclear development in order to reduce tensions in the region.
Foreign ministry spokesman Geng Shuang spoke out against the Thaad deployment. He told reporters: "It helps in no way to achieve the denuclearisation of the peninsula and regional peace and stability."
The Trump administration, which has been urging China to rein in its ally, North Korea, is due to hold a briefing for senators on the situation later on Wednesday.
The Thaad (Terminal High-Altitude Area Defense) system is designed to intercept and destroy short and medium-range ballistic missiles during their final phase of flight.
"South Korea and the United States have been working to secure an early operational capability of the Thaad system in response to North Korea's advancing nuclear and missile threat," South Korea's defence ministry earlier said in a statement.


Google is to sell a revamped version of its smart glasses to businesses, more than two years after the original version of the product was cancelled.

The company said Glass Enterprise Edition had improved battery life and felt more comfortable during long-term wear than before.
However, it still resembles the original model, with a small see-through display and built-in camera.
It will face competition from Microsoft's HoloLens among others.
Many had assumed the project had been cancelled after the executive in charge, Tony Fadell, resigned last year.
However, parent company Alphabet's X division continued to develop the technology and has now revealed its efforts in a post on the news site Medium.
"Workers in many fields, like manufacturing, logistics, field services, and healthcare find it useful to consult a wearable device for information and other resources while their hands are busy," wrote project lead Jay Kothari.
"That's why we've spent the last two years working closely with a network of more than 30 expert partners to build customised software and business solutions for Glass for people in these fields."
Mr Koathri revealed that logistics workers at the delivery company DHL, engineers at General Electric and medics at Dignity Health had been among those secretly using the eyewear over recent months.
Wired magazine added that those involved had had to promise not to reveal the existence of Glass Enterprise Edition and pose with the old version in any photos showing them using the eyewear at work.
Improvements over the earlier Explorer Edition include:
Google sold the original prototype edition for Â£1,000.
This time, the product will be sold via a range of specialised software companies, which are bundling it with their respective services.
Germany-based Ubimax - which makes software for logistics and manufacturing workers - told the BBC it would charge about 1,500 euros ($1,735; Â£1,335) per unit on top of rolling fees for its own solutions.
"It makes perfect sense to target businesses," said Chris Green from the technology consultancy Lewis.
"While the original iteration of Google Glass had questionable consumer applications, we are already seeing that there is huge potential for augmented reality particularly in things like manufacturing.
"For example, a floor worker can get a single view of all the sensor data across a production line, from data about output and wear and tear of components, to where the bottlenecks are, all in a way they wouldn't be able to do just by wandering the line normally."
But in the period Google left the market, other companies, including Vuzix, Meta and Epson, have developed their own augmented reality eyewear targeted at businesses.
And Microsoft began selling a "developer edition" of its more advanced - and more expensive - HoloLens augmented reality headset last year.
It benefits from superimposing graphics over both eyes and can run more complex apps, since it is powered by a Windows 10 PC rather than a smartphone.
However, at present, HoloLens offers only two to three hours of active use.
Somewhere in a drawer at home is one of the most exciting - yet frustrating -  pieces of technology I have ever used.
I wore Google Glass for something like six weeks as a journalistic experiment.
It flashed up news alerts and social media messages, it helped me navigate, but mostly it was a very handy wearable camera - capturing everything from my dentist leaning over me to a pitch invasion as Brentford won promotion.
But when I stopped wearing the device, it was a relief - from the constant abuse from friends, family and colleagues who thought, correctly, that I looked like a fool.
A few also thought it an invasion of their privacy, though the flashing red light made taking pictures a less covert activity than shooting with a smartphone.
In retrospect, Google's decision to launch Glass as a consumer product was a clumsy error, driven by a desire for positive PR rather than any business case.
In the enterprise world, where Microsoft has been quietly developing its HoloLens headset, this kind of device makes far more sense.
Somehow, the aesthetics of putting something hi-tech on your face in a work setting are completely different.
But I am wondering whether it is time to retrieve the Glass from my drawer and have another go.


England confirmed their place at Euro 2016 after a routine dismissal of San Marino - but captain Wayne Rooney must wait to eclipse Sir Bobby Charlton's all-time goals tally.

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Rooney scored a record-equalling 49th goal with an early penalty but was surprisingly substituted by England manager Roy Hodgson with history beckoning and the San Marino defence out on its feet. He must now try again against Switzerland at Wembley on Tuesday.
There was still plenty for England to celebrate, though, as they made it seven wins out of seven in qualifying to ensure they will be in France next summer.
England were never under threat and it was another damage limitation exercise for San Marino, especially after Cristian Brolli headed into his own net before half-time.
Ross Barkley nodded in his first England goal after the break and England romped clear with two goals from substitute Theo Walcott and Harry Kane's clever lofted finish.
There was general astonishment - probably shared by Rooney himself - when he was substituted after 58 minutes needing just one goal to beat Charlton's record.
Rooney will surpass the former Manchester United player's mark eventually and perhaps it will be more fitting should he seal it against Switzerland at Wembley on Tuesday rather than this quaint 6,600-capacity arena with many fans getting a free view from the hills that rise up at one end of the stadium.
It looked like the record was there for the taking when Rooney tucked away that early penalty but he had no further clear chances - although one would surely have come against a home defence that was exhausted in the last 25 minutes.
England manager Roy Hodgson gave opportunities to players in the relatively sedate surroundings of San Marino and one man in particular took his chance with relish.
Swansea City's Jonjo Shelvey, making his first England appearance in almost three years, was positive in possession, happy to play a deeper role but also willing to get forward and show his range of passing. He capped his performance by making the fifth goal for substitute Kane.
He will have created a good impression with Hodgson through his discipline and work-rate and can feel he has worked his way back into the England fold.
Barkley also made his mark with a neatly-taken header from Alex Oxlade-Chamberlain's cross as well as a few trademark moments of quality.
It was a tougher night for Leicester City's Jamie Vardy, who struggled to get into the action and, for a short while in the second half, became embroiled in a running battle with San Marino defender Giovanni Bonini.
Everton's John Stones, at the centre of so much speculation recently as Chelsea were willing to pay in excess of £30m for his services, had little to do other than handle the unique pressure of ensuring San Marino did not score their first goal of the Euro 2016 qualifiers on his watch.
Well, they will definitely be there and, as the first team to qualify (hosts France apart) Hodgson has some time for experimentation in the final three qualifiers.
England will not travel to France among the favourites but there is some fine young talent in this squad in the shape of the likes of Barkley, Luke Shaw, Kane, Stones and, of course, Raheem Sterling, who was rested on Saturday.
Hodgson will hope they continue to develop rapidly over the next 12 months alongside established, experienced players such as Rooney.
This should mean England can travel with hope and optimism. But potential winners? That is a long stretch.
England striker Wayne Rooney: "It's a proud moment to equal Sir Bobby Charlton's record. My aim is to push on and try and help the team win on Tuesday and break the record.
"It would have been great if the record had happened tonight. Obviously the tradition of Wembley and to break the record at Wembley would be great."
England manager Roy Hodgson: "I am more than satisfied and we won it with a good margin.
"One or two who weren't in contention to play on Tuesday night have pushed their claims and Jonjo Shelvey deserves a mention."
Former England midfielder Jermaine Jenas on BBC Radio 5 live: "There have been some decent performances from England. Ross Barkley stepped it up in the second half, Nathaniel Clyne bombed up and down the right flank and Jonjo Shelvey has hardly given the ball away.
"England manager Roy Hodgson will be delighted with his team's discipline, energy and professionalism."
Match ends, San Marino 0, England 6.
Second Half ends, San Marino 0, England 6.
Foul by Harry Kane (England).
Alessandro Della Valle (San Marino) wins a free kick in the defensive half.
Foul by Jamie Vardy (England).
José Adolfo Hirsch (San Marino) wins a free kick on the right wing.
Foul by Ross Barkley (England).
Matteo Vitaioli (San Marino) wins a free kick in the defensive half.
Theo Walcott (England) wins a free kick on the right wing.
Foul by Mirko Palazzi (San Marino).
Attempt saved. Danilo Rinaldi (San Marino) left footed shot from outside the box is saved in the top centre of the goal. Assisted by José Adolfo Hirsch with a headed pass.
Attempt missed. Theo Walcott (England) right footed shot from the centre of the box is close, but misses to the left. Assisted by John Stones with a through ball.
Substitution, San Marino. Alessandro Della Valle replaces Davide Simoncini.
Foul by Harry Kane (England).
Cristian Brolli (San Marino) wins a free kick in the defensive half.
Goal!  San Marino 0, England 6. Theo Walcott (England) right footed shot from the right side of the box to the bottom left corner. Assisted by Ross Barkley with a through ball.
Goal!  San Marino 0, England 5. Harry Kane (England) right footed shot from the right side of the box to the centre of the goal. Assisted by Jonjo Shelvey with a through ball.
Offside, England. Jamie Vardy tries a through ball, but Harry Kane is caught offside.
Substitution, San Marino. Danilo Rinaldi replaces Andy Selva.
Substitution, San Marino. Luca Tosi replaces Giovanni Bonini.
Attempt missed. Nathaniel Clyne (England) right footed shot from outside the box misses to the left. Assisted by Fabian Delph.
Attempt blocked. Ross Barkley (England) right footed shot from outside the box is blocked. Assisted by Fabian Delph.
Goal!  San Marino 0, England 4. Theo Walcott (England) right footed shot from very close range to the bottom right corner. Assisted by Fabian Delph with a cross.
Substitution, England. Theo Walcott replaces Alex Oxlade-Chamberlain.
Attempt missed. Fabian Delph (England) right footed shot from outside the box is too high. Assisted by Jonjo Shelvey.
Attempt blocked. Jamie Vardy (England) right footed shot from outside the box is blocked.
Foul by Fabian Delph (England).
José Adolfo Hirsch (San Marino) wins a free kick in the defensive half.
Attempt missed. Fabian Delph (England) left footed shot from a difficult angle on the left misses to the right. Assisted by Alex Oxlade-Chamberlain with a cross.
Attempt missed. John Stones (England) right footed shot from a difficult angle on the right is close, but misses to the right. Assisted by Ross Barkley with a cross following a corner.
Corner,  England. Conceded by Marco Berardi.
Substitution, England. Harry Kane replaces Wayne Rooney.
Substitution, England. Fabian Delph replaces James Milner.
Jamie Vardy (England) wins a free kick in the defensive half.
Foul by Giovanni Bonini (San Marino).
Foul by Jamie Vardy (England).
Giovanni Bonini (San Marino) wins a free kick in the defensive half.
Attempt missed. Matteo Vitaioli (San Marino) right footed shot from outside the box misses to the right. Assisted by Andy Selva.
Dangerous play by James Milner (England).
Nicola Chiaruzzi (San Marino) wins a free kick in the defensive half.


A boy and girl have been treated in hospital after a suspected drugs misuse incident at a North Ayrshire school.

The two pupils became unwell at the school on Monday and were taken to Crosshouse Hospital in Kilmarnock for treatment and were later released.
Police Scotland said the pupils were a 12-year-old girl and a 13-year-old boy. Inquiries into the matter are ongoing.
North Ayrshire Council confirmed that two pupils had fallen ill and said it was assisting police with inquiries.
The police spokesman said: "We can confirm that we received a report on Monday the 7th of November of two pupils, a 12 year-old girl and a 13 year-old boy, at a North Ayrshire school, having taken unwell following what is believed to be an incident of drugs misuse.
"Both were taken to Crosshouse Hospital for observations before being released. Inquiries are continuing."


Five children have died in a house fire in northern France.

The blaze in Saint-Quentin, about 130km (80 miles) north-east of Paris, was probably accidental, reports say.
The children's father was present but escaped with serious burns, local officials said.
Three people were also killed and 13 hurt in a fire in the Paris suburb of Aubervilliers on Saturday. Officials suspect the fire was "of criminal origin" and an investigation has begun.
Officials said that the blaze in Saint-Quentin began at around 22:30 local time (21:30 GMT).
The father had been looking after the children for the first time since splitting up with his wife three months earlier, a neighbour told French media.
He tried to reach his children but was beaten back by the flames and jumped from the first floor of the building to raise the alarm, reports say.
But by the time emergency services arrived, the building was not safe to enter and the children's bodies were discovered when the fire had been put out.
The flames "severely hampered the firefighters' work", local official Jean-Jacques Boyer said.
The children's bodies were eventually found and they had died of asphyxiation, he added.
Four of those injured in the Aubervilliers fire were in a serious condition. Around 60 people were reported to be in the seven-storey building when the fire began.
"The fire was probably of criminal origin, it looks like it was a settling of scores," the mayor's Chief of Staff Michael Dahan told TF1 radio.
Aubervilliers' deputy mayor for housing, Evelyne Yonnet, told French media the building was "very badly managed, with a squatting problem".
Those who escaped from the building were being temporarily housed in a local gymnasium, reports say.


US actress Kim Cattrall is to star in a BBC adaptation of Agatha Christie's The Witness for the Prosecution.

Filming began last week in Liverpool for the two-part drama, which will also star Toby Jones and Andrea Riseborough.
Cattrall, still best known for her role as Samantha in US series Sex in the City, stars as the murder victim while Billy Howle plays the suspect.
Riseborough appears as the accused's girlfriend, while Jones portrays his solicitor.
The Witness for the Prosecution is a 23-page short story by Christie, written in 1925.
The TV adaptation will be directed by Julian Jarrold, whose credits include The Girl and Appropriate Adult.
No transmission date has been given yet.
Cattrall spoke out earlier this year about the chronic insomnia that forced her to withdraw from a play at London's Royal Court in November.
The 59-year-old was due to play the title role in Linda but pulled out shortly before it opened.
"I didn't want to let down the audience, the theatre, playwright or the actors," she told the Radio Times.
She said being unable to sleep felt like "a gorilla sitting on [her] chest" and had left her "in a void".


A man has been found with his hands nailed to a tree close to a popular hiking trail in the US state of New Mexico, police say.

The unidentified man was discovered by city refuse collectors at around 08:30 local time on Monday in Albuquerque after they heard his cries for help.
The nails were about 3in (7.6cm) long, and had been driven through his hands, but he survived.
Police say the man is not co-operating with their investigation.
He was found less than a mile from the trail, according to the Albuquerque Journal.
Celina Espinoza, a spokeswoman for the city police department, told the newspaper "officers found a man who seemed confused, standing in front of a tree with his hands next to his shoulders".
His hands were not bleeding, she said, adding that there was one nail in each hand.
They removed him from the tree, and took him to hospital.
Ms Espinoza says that officers are not sure how long he was there and why this happened to him.
Police are appealing for the public's help.


A Royal Navy cadet who was allegedly raped twice by a fellow student climbed back into bed with him afterwards, a court martial has heard.

Sub Lt Samuel Mitchell, 27, is accused of raping her "when she was too drunk to fight back" following a party last year at the Britannia Royal Naval College (BRNC) in Devon.
Sub Lt Mitchell denies two counts of rape.
The complainant, who can not be named, said "she just wanted to fall asleep".
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She also told the court she passed Sub Lt Mitchell a tub of moisturiser which he massaged into her back, after he asked for some baby oil.
"This is one of the things I have struggled with, I became compliant, I cannot explain that", she said.
The court has heard that she had drunk four glasses of Pimms, a glass of red, wine, some Champagne, and a double gin and tonic and had been carried back to her room by her friends.
The complainant has described how she had been unable to "articulate" her wish not to have sex with the defendant, other than by remaining passive, crossing her arms across her chest and saying "no sex".


The Welsh economy is "moving forward pretty well", the first minister has said.

Speaking to Jeremy Vine on BBC Radio 2, Carwyn Jones said inward investment and tourism were both playing their part.
He admitted there were areas such as the valleys still struggling to recover from the decline of heavy industry.
But Mr Jones added that London had a higher rate of unemployment than Wales, which had been creating jobs faster than the UK as a whole.
The first minister also dismissed suggestions that Welsh Labour faced a similar threat from Plaid Cymru as his Scottish colleagues faced from a surge in support for the SNP.
"People can see what we can offer as a government here in Wales," he said.
"As a result of that, Labour support is holding steady."


Craig Hignett got his tenure as Hartlepool manager off to a positive start with a win over 10-man Yeovil.

Pools' Jake Gray grazed the crossbar within the first minute before Jakub Sokolik fouled Nathan Thomas to allow Billy Paynter to score from the spot.
Adam Jackson doubled the lead with a header from a corner and things got worse for the away side when Nathan Smith was sent off for shoving Paynter.
Francois Zoko headed in a late consolation from Simon Gillett's cross.
The win is Hartlepool's first in five League Two games and sees them leapfrog Yeovil and move into 21st place, four points from the relegation zone.


Protests are taking place across India against rising attacks on Muslims and Dalits (formerly untouchables) by vigilante cow protection groups.

About 2,000 people turned out in Delhi. Protests were also being held in 15 other cities as well as in London, protest organiser Saba Dewan said.
The campaign, #NotInMyName, started with a Facebook post she wrote after a Muslim teenager was killed last week.
Many Hindus consider the cow a sacred animal.
Wednesday's protests come amid reports that a Muslim dairy farmer in Jharkhand state was assaulted and his house was set on fire after the carcass of a cow was found at his door on Tuesday afternoon.
Cow slaughter is banned in several Indian states and those found violating the law can be jailed for up to 10 years. Parliament is also considering a bill to bring in the death penalty for the crime.
But ever since the Hindu nationalist Bharatiya Janata Party came to power in the summer of 2014, vigilante cow protection groups have been emboldened and there have been numerous attacks on Muslims and Dalits, for whom beef is a staple.
Nearly a dozen people have been killed in these attacks over the past two years. Targets are often picked based on unsubstantiated rumours and Muslims have been attacked for even transporting cows for milk.
Crowds gathered at Jantar Mantar, a historical Delhi monument and popular venue for protests.
Many of the 2,000 present held posters and banners saying #NotInMyName. Others wondered if it is so easy to divide Indians on the basis of religion. On the stage, poets recited verses, and musicians sang songs of protest.
Organiser Saba Dewan demanded that Indian citizens be protected, saying the right to life is non-negotiable. One young woman told me the murders were not how she wished to remember her country.
The protest organisers have alleged that the family of Junaid Khan, the 16-year-old Muslim boy brutally killed by a Hindu mob on a train last week, had not been able to attend because they were intimidated by the authorities.
Protests under the banner #NotInMyName are being organised in 16 Indian cities, including Delhi, Mumbai, Bangalore, Chennai, Hyderabad, Lucknow and Allahabad as well as in London on Wednesday. Gatherings are also planned for later in the week in Toronto, Boston and Karachi.
The protest at Delhi's Jantar Mantar monument was expected to be the biggest, Ms Dewan said.
The documentary filmmaker said she was "shattered" when she heard about last Thursday's attack on 16-year-old Junaid Khan, who was killed by a mob of about 20 men on a train in the northern state of Haryana while returning home from Eid shopping in Delhi.
Her anguished Facebook post has managed to galvanise a large number of Indians, with thousands pledging to participate in the protests.
"The protest is against this systematic violence against Muslims and Dalits that is going on in our country at the moment," Ms Dewan said.
"Junaid's killing was a shattering moment for me, and also for a lot of other people. I started crying when I heard about his murder.
"We've always been saying we should protest, but there's been no leadership. So we decided to do this ourselves. How long can you keep waiting till the cows come home?" she added.


Brittany Maynard, the terminally ill cancer patient whose viral YouTube video reignited the debate on assisted-suicide, ended her life on Saturday.

Mrs Maynard and her husband moved from California to Oregon, where assisted-suicide has been legal since 1997.
Oregon's Death with Dignity Act allows terminally ill residents to obtain lethal prescriptions from doctors.
Since 1997, 1,173 people were granted lethal prescriptions and 752 patients used it to end their own lives.
Mrs Maynard, 29, who was suffering from a terminal brain cancer, died at home after administering lethal drugs on Saturday.
She died "in the arms of her loved ones," a spokesman for the campaign group Compassion & Choices said.
Sean Crowley said Mrs Maynard was suffering from increasingly severe seizures and head and neck pains which had at times limited her ability to speak.
Following months of treatment and a worsening prognosis, Mrs Maynard made the decision to use Oregon's laws to obtain a lethal dose of medication which she kept "until the time is right," as she said in her video.
She received the lethal medication several months ago, and last week in a video posted to her website she said that she was considering delaying her plan.
"I still feel good enough and I still have enough joy and I still laugh and smile with my family and friends enough that it doesn't seem like the right time right now," she said. "But it will come, because I feel myself getting sicker."
Mrs Maynard's first video went viral and has attracted more than nine million views on YouTube.
In it she said that she first started experiencing the headaches shortly after getting married.
Assisted suicide is controversial in the US, where it faces staunch opposition from Christian campaign groups, among others.


UK students have become more satisfied with their university experience over the past decade, a study finds.

It shows a rise in satisfaction levels since 2005, especially in areas such as academic support and assessment.
The Higher Education Funding Council for England analysed the results of the annual National Student Survey of more than 2m final-year UK students.
It shows overall satisfaction levels have risen by five percentage points, from 80.2% in 2005 to 85% in 2013.
Satisfaction with "assessment and feedback" rose by 12 percentage points during this period, as did happiness with "academic support".
The results show differences depending on the subject a student chose, with students in creative art and design, computer science and mass communication and documentation less satisfied over time.
Among the more satisfied were those studying veterinary sciences, physical sciences, mathematical sciences and geographical studies.
The study also found that black African students were more satisfied overall than white students, but those from a black Caribbean background were less content.
The analysis covers the core population of students who have been part of the National Student Survey cohort since 2005 - those registered at English, Welsh and Northern Irish universities who are not funded by the National Health Service.
Hefce chief executive, Prof Madeleine Atkins, said: "The NSS is an invaluable source of intelligence for universities and colleges.
"The reports we are publishing today confirm the robustness of the NSS, and the value it adds to UK higher education. Hefce will now work with the other UK funding bodies, universities and colleges, and students, to make refinements for the future."
A  spokesman for the Department for Business, Innovation and Skills said: "We welcome this research on the NSS, which shows that students have become more satisfied with their higher education experience.
"However, we are not complacent and are looking for institutions to analyse the data published today to improve the learning experience they offer to all students."
Sally Hunt, general secretary of the University and College Union, said: "Despite unpopular and chaotic university funding changes from governments in the past nine years, students remain satisfied with their degrees and it is the staff in our universities who deserve enormous credit for that.
"Satisfaction remains high even though staff pay has been driven down, workloads have increased and some students expect more for their massively increased fees - despite the fact that money merely covers the funding this government has cut.
"The government and universities cannot continue to simply expect more for less. We need proper investment and commitment to higher education if we are to continue to satisfy students in our universities and be a key player on the world stage."


A North Carolina judge has ruled a man accused of killing three Muslim students can face the death penalty.

Superior Court Judge Orlando Hudson Jr said prosecutors had two aggravating factors and that Craig Stephen Hicks is "death penalty qualified".
Craig Hicks is charged with the murders of Deah Barakat, his wife Yusor Mohammad Abu-Salha and her sister, 19-year-old Razan Mohammad Abu-Salha.
Prosecutors said Mr Hicks shot the three after coming to their door.
Their family has pushed for hate crime charges, saying Mr Hicks targeted them for their religious identity.
Federal investigators have opened a separate inquiry and more charges could be added against Mr Hicks, District Attorney Roger Echols said, but for now "first-degree murder is the highest crime you can be convicted of and that is our focus".
The killing of the three students in February sparked international outrage, especially on social media where the hashtag #ChapelHillShooting was used hundreds of thousands of times.
US President Barack Obama himself denounced the killings as "brutal and outrageous murders", adding no-one in the US should be targeted for "what they look like" or "how they worship".
Dozens of firearms were found in the condominium Mr Hicks shared with his wife, in addition to the handgun he had when he turned himself in, prosecutors said.
He also kept pictures and notes on his computer about parking activity in the lots around his home, according to police search warrants.
Neighbours described him as an angry man who had frequent confrontations over parking or loud music, sometimes with a gun holstered at his hip.
Prosecutors said they believed Mr Hicks had gone to Barakat's door with a concealed gun and shot him and the two women further inside after an exchange, according to the News Observer.
He then allegedly shot the two women a second time in the head and shot once more at Barakat, prosecutor Jim Dornfried said.
Barakat was a second-year graduate dental student at the University of North Carolina, and his wife, Yusor Mohammad Abu-Salha, was scheduled to begin dental studies in the next school year.
Her sister, Razan, attended North Carolina State University as a design student.


A partially-sighted lorry driver has been cleared of killing an elderly couple after his vehicle hit them at 12mph (19km/h).

George and Vera Maskell were in the path of Darren Sanders' lorry in a cul-de-sac in south-west London.
The Old Bailey heard they "seemed uncertain what to do".
Sanders, 44, of Wellingborough, was found not guilty of causing death by dangerous driving, but admitted careless driving.
He was given a nine-month prison sentence, suspended for two years, and was banned from driving for 19 months.
The court heard the couple were wheeling a shopping trolley back to their car in Sunbury Cross in July.
Passers-by heard a "dull thud" when the couple were hit by the lorry, which was coming out of a service road which had a 5mph speed limit.
Both had fractured skulls and Mrs Maskell was trapped under the vehicle's wheels.
Jane Osborne, prosecuting counsel, said: "They seemed uncertain what to do and in the event did not move.
"Mr Maskell held onto his wife's arm as if he was trying to move her from the path of the vehicle.
"If he [Sanders] had seen the pedestrians he would not have hit them because his braking time would have been such that he would have stopped before."
The court heard Sanders told police "they just stepped out in front of me" and he had not seen them.
The trial heard he was blind in one eye, but had a valid driver's licence.
He had had flashbacks and sleepless nights since the accident.
Sentencing him, the Common Serjeant of London, Richard Marks QC, said:  "The real cause of this accident was not in reality the speed or your failure to observe the Give Way sign but the fact you simply did not see them in front of you."


American Simone Manuel and Canada's Penny Oleksiak claimed joint gold in a remarkable finish to the women's 100m freestyle final at the 2016 Olympics.

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Manuel, 20, became the first black female swimmer to win an Olympic gold medal, while Oleksiak, 16, won Canada's first gold of these Games.
Both women finished in 52.70 seconds, a new Olympic record.
Sweden's Sarah Sjostrom took bronze, with Australian sisters Bronte and Cate Campbell fourth and sixth respectively.
The last time two swimmers won joint golds in the Olympics was in 2000 when Americans Gary Hall and Anthony Ervin shared the men's 50m freestyle title.
Oleksiak, who has also won a silver medal in the 100m butterfly and two relay bronze medals in Rio, becomes the first competitor born after 1 January, 2000 to claim an Olympic gold medal in an individual event.
The Campbell sisters were expected to battle for the gold and at the halfway point world record holder Cate Campbell led with Bronte second.
However, the pair, who helped Australia win the 4x100m freestyle relay on Saturday, faded in the second half of the race to miss out on the medals entirely.
Manuel said: "My first gold medal, at my first Olympics, is kind of a surprise to me.
"I never thought I would be in this position but I'm so blessed and honoured to be on the medal stand. All my hard work has paid off and I am really happy about it.
"I will just remember all the memories I made. Team USA is awesome. We're a family and it's a great support system. Regardless of our achievements, we're all there for each other and we are friends."
Oleksiak said: "This is amazing, to tie for a gold. I never thought I'd win a gold. It means so much. She (Manuel) deserves it as much as me."
Rebecca Adlington, double Olympic gold-medal winning swimmer, on BBC One: "I'm so shocked by that race. I don't think it's sunk in.
"Cate Campbell broke the world record two months ago - how can you go from that to sixth? It just baffles me."
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Ten people have been arrested and two guns seized in a series of police raids on Merseyside.

Officers searched properties in Sefton and Knowsley before 07:00 BST as part of their investigation into drug dealing and organised crime.
Eight people were detained in Bootle, Kirkby, Waterloo and Maghull, while a further two men were "produced from prison", Merseyside Police said.
A shotgun, handgun and a large quantity of Class A drugs were also seized.
Supt Claire Richards said the success of the raids would help reduce gun and gang crime in the area.
She added that the raids came as a result of information from the public being "pieced together with a number of police enquiries".


German Chancellor Angela Merkel and top EU officials are due to visit the Turkish-Syrian border to promote a controversial month-old migrant deal.

The visit comes amid questions over the legality of the EU-Turkey pact, which deports back to Turkey migrants who do not qualify for asylum in Greece.
Human rights groups say Turkey is not a safe place to return people.
Turkish officials have warned the deal could collapse if demands for visa-free EU travel for its citizens are not met.
The agreement says Turkey must meet 72 conditions by 4 May to earn the visa waiver, but diplomats say only half of those points have been met so far.
Mrs Merkel is expected to visit a refugee camp in the southern city of Gaziantep, near the Syrian border,  where she will meet Turkey's Prime Minister, Ahmet Davutoglu.
She will travel with the European Council President, Donald Tusk, and the EU Commission Vice-President, Frans Timmermans.
Mrs Merkel has faced opposition in Germany for her migration policies and has defended the deal with Turkey despite opposition from some European partners.
Her trip comes as she faces additional pressure for agreeing to the prosecution of a German comedian accused of insulting Turkish President Recep Tayyip Erdogan.
Advocates of freedom of speech in both Turkey and Germany have called on Mrs Merkel to send out a strong message on the issue during her visit.
It has been over a month now since the migrant deal between the EU and Turkey was struck, but not everyone is convinced that it is working smoothly.
Although the number of migrants reaching Greece from Turkey has dropped by around 80%, few of staff promised by the EU to help enforce the deal have arrived, and many EU nations are dragging their feet to accept more migrants.
Angela Merkel said the aim of the visit was to see the living conditions of migrants in Turkey.
But more will be on the table, such as the promise of visa-free travel for Turkish citizens willing to go to Europe, which seems to be one of the most contentious issues.
The goal of the EU-Turkey deal is to deter migrants, mainly Syrians and Iraqis, from making the crossing between Turkey and Greece.
Under the agreement, migrants who have arrived illegally in Greece since 20 March are expected to be sent back to Turkey if they do not apply for asylum or if their claim is rejected.
For each Syrian migrant returned to Turkey, the EU is due to take in another Syrian who has made a legitimate request.
The scheme has reduced sharply the number of arrivals, from more than 56,000 in February to around 7,800 over the past 30 days, according to the European Commission.
However, the International Organization of Migration said unofficial data for arrivals in Greece in recent days suggested the numbers were picking up again.
And the promised relocation to EU countries seems to be slow as nations are reluctant to take in more migrants - 103 Syrians have been resettled from Turkey to Europe, the commission said.
Last month, EU border agency Frontex requested 1,550 extra staff to help oversee the deal, but so far only 340 police officers and experts have been sent.
Rights organisations have attacked the scheme, with Amnesty International saying that Turkey has illegally returned Syrians to their country, a charge Ankara denies.
The EU has pledged up to $6.8bn (Â£4.5bn) in aid to Turkey over the next four years.
Ankara, however, expects more, including visa liberalisation, a point which faces opposition of some EU members.
"If the European Union does not take the steps it needs to take, if it does not fulfil its pledges, then Turkey won't implement this agreement,'' Mr Erdogan said earlier this month.
Turkey already hosts some 2.7 million Syrian refugees, at a cost of over $10bn (Â£7bn), the government says.
A note on terminology: The BBC uses the term migrant to refer to all people on the move who have yet to complete the legal process of claiming asylum. This group includes people fleeing war-torn countries such as Syria, who are likely to be granted refugee status, as well as people who are seeking jobs and better lives, who governments are likely to rule are economic migrants.


Democratic Unionist Party councillor and former assembly member Maurice Devenney has been suspended from the party, the BBC has learned.

The DUP said he had brought the party into "disrepute".
It is understood to be linked to complaints about Mr Devenney during last year's Westminster election when he was accused of canvassing votes for the SDLP outside a polling station.
Mr Devenney denied the accusation and said it was a misunderstanding.
It is understood the complaints relate to Mr Devenney asking DUP supporters to give their votes to the SDLP's Mark Durkan.
He now has 14 days to appeal his suspension.
In a statement, the DUP said Mr Devenney had been suspended with "immediate effect".
Mr Devenney is one of the DUP's highest profile politicians in Londonderry.
He has been a councillor in the city for 11 years and is a former mayor.
He replaced William Hay in the assembly two years ago.
Five months later, he stood down and was replaced by Gary Middleton.
At the time, Mr Devenney said he was stepping down because he wanted to concentrate on more local issues in the council.
It now appears relations within the party became strained shortly after that and came to a head on the day of the Westminster vote last year.
It is understood the DUP received a number of written complaints from voters who claimed to have been advised by Mr Devenney to vote for the SDLP.
The party investigated the complaints and has now decided to suspend Mr Devenney from the party.
He was informed of the decision in an email this week.
Because Mr Devenney has been suspended from the DUP and not the council, he is still entitled to take up his seat in the council chamber.
The BBC understands that he will not be involved in DUP council group meetings and will not be able to speak on behalf of the party.


The death of a woman whose body was found in a park is not being treated as suspicious by police.

Emergency services were called to Castle Park, Bristol, on Saturday night.
The woman, who is in her late 40s, was pronounced dead at the scene. Initially officers said the death was "unexplained".
However, following a post-mortem Avon and Somerset Police said it does not believe foul play was involved.
Anyone who was in Castle Park at about 23:30 BST on Saturday is asked to contact police.


Aerospace group Airbus has posted a rise in profits for the first nine months of the year, but warned of more problems for its A400M military plane.

Underlying earnings rose 12% to €2.59bn ($3.2bn; £2.1bn) for the nine-month period, with revenues up 4% to €40.5bn. Net income rose 16% to €1.399bn.
But Airbus highlighted a "negative cost and risk evolution" for its delayed A400M transport aircraft.
The programme hit problems in 2010 and received a bailout of €3.5bn.
Built at a cost of €20bn with orders from several European countries, the A400M was a fixed-priced contract that hit production problems and cost-overruns.
Airbus said it would account for any future impact in its full-year results to be published early next year.
The company's finance director did not rule out Airbus taking a one-off accounting charge against future problems.
Harald Wilhelm told journalists: "Given our past history on it (the A400M), the objective remains to avoid any incremental charge, but we are on the way to assessing it. If you ask me whether I can exclude it, I cannot say that this is the case, so it's work in progress."
Outside of the A400M problems, Airbus, whose wing-making operations are in the UK, said that the company's products remained "strong".
The order book was worth €765.4bn as of 30 September, compared with €680.6bn at the end of 2013.
Airbus Group chief executive Tom Enders said: "An improved operational performance drove revenues and profitability higher over the first nine months of 2014."
However, adverse exchange rates had impacted on profits in the last three months.


Romelu Lukaku says he did not have to "think twice" about moving to Manchester United from Everton as it represents "the perfect opportunity".

The 24-year-old striker is set to sign for United for an initial £75m, despite former club Chelsea matching the bid.
"It's a club that is hungry to win the league again, to be dominant in the world again," Lukaku told ESPN, who say they spoke to him after his medical.
"It's the sort of opportunity I've always wanted since a child."
Lukaku is in the United States and was arrested in Los Angeles last week following a noise complaint. He is due to appear in court on 2 October.
The transfer for him, initially reported by BBC Sport on Thursday, is believed to include £15m in add-ons.
Chelsea tried to re-sign the Belgium international but were not willing to match the fees Lukaku's agent, Mino Raiola, would earn if the forward moved to Old Trafford.
United said on Saturday they were "delighted" to agree a deal.
"When they came calling I didn't have to think twice, so I'm really delighted to be part of history," said Lukaku.
"Who would say no to the biggest club in the world? The best stadium in England, the best fans. I mean, it's the perfect opportunity.
"I always said I wanted to play for a team that's challenging for every trophy that there is there. I think Manchester United at the minute wants to be the dominant team, the dominant force.
"Now it's time to work hard, work harder than I ever did before and I'm willing to do it."
United manager Jose Mourinho was manager of Chelsea when they sold Lukaku to Everton for £28m in July 2014.
The Belgian scored 25 Premier League goals last season, and United have been chasing him for most of the summer.
Mourinho on Lukaku expressing surprise he was released by Chelsea to join Everton on loan in 2013:
"Romelu likes to speak. He's a young boy who likes to speak. But the only thing he didn't say is why he went to Everton on loan. That's the only thing he never says. And my last contact with him was to tell him exactly that - 'why do you never say why you are not here?'"
Lukaku on Mourinho in December 2015:
"Everyone says it is Mourinho's fault but it is not his fault because I made the decision [to leave Chelsea]. I went to his office to ask if I could go.
"I signed the deal with Everton at 11 o'clock and the first text message I got on my old BlackBerry was from Mourinho saying: 'Good luck, do your best and I will see you next season.'
Mourinho on selling Lukaku to Everton:
"Romelu was always very clear with us with his mentality and his approach was not highly motivated to come to a competitive situation with Chelsea.
"He wanted to play for Chelsea but he clearly wanted to be first-choice striker - but for a club of our dimension it is very difficult to promise to a player."
Find all the latest football transfers on our dedicated page.


No longer satisfied with being the dominant network for our humble species, Facebook is now courting a different type of user: bots. And eventually you'll be able to talk to them as if they were your mates.
"Could you transfer £100 to my brother, please?" you might one day ask your bank. Or maybe, "Do you have any blue shirts in my size?"
Sometimes they'll ask you things too, with something like: "Do you want to hear today's top stories?"
Right now the conversations will be structured - with Messenger bots suggesting things you can say. But the goal is natural conversation, and it could be a huge step.
If what Facebook has promised today at its F8 developer conference comes to pass, the effect on our everyday lives could be enormous. It could be, according to Facebook's head of messaging David Marcus, a return to more personal interactions.
"Before the internet era, everything was conversational," he told the BBC.
"But then we traded conversations for scale."
One of the bots being launched on the service today will be from Spring, an artificially intelligent concierge service.
"Spring is actually going to build an experience where everything is automated except customer service," Mr Marcus explained.
"It's bot for 99.9%, but then if you have a problem, a human can actually jump in and sort out your problem.
"That's the best of both worlds."
There are obvious concerns to all this, and I'll get to those in a second, but first here's how it will work.
Messenger Platform, as Facebook calls it, is the firm's latest application programming interface (API).
An API is a way for companies like Facebook to give external developers the access and know-how to make things on their platforms.
It's a big opportunity - the company's first API, which allowed anyone to create apps on Facebook, led to the birth of multi-billion dollar companies including Farmville creator, Zynga.
There are already bots on Facebook - you can book an Uber through it in the US, for instance - but the crucial news today is anyone is now free to make their own bot. Which is why some are seeing today's announcement as the start of another Facebook gold rush.
The bots will live within Facebook Messenger - an app that was spun off from the main Facebook app in 2014 in a manner which angered users but makes a lot of sense now as Messenger looks set to become a bigger deal than just instant messaging.
While developers will be free to create their own uniquely intelligent bots, they will all be fundamentally powered by Facebook's Bot Engine. Think of it as the centralised brain.
As time goes on, Bot Engine should get smarter and more used to human interaction meaning, in theory, that all the bots will collectively get smarter and more "human".
It's the Bot Engine, a constantly evolving product of almost a billion people's interactions, that might give Facebook a massive advantage over others in the bot game such as Apple, Google and Microsoft.
Other announcements at F8 included:
Facebook is a platform that users already talk on constantly.
It's a platform that already knows what you like, what you want, and what you may desire in the future.
Bringing bots into this mix could be a real game-changer.
Or it might be a disaster.
First - the obvious: Users might not like the idea of companies acting like people in spaces usually reserved for conversations with our friends.
This will probably be made more irritating given that Facebook plans to let businesses find you on Messenger if they already have your mobile phone number.
Then again, another way of looking at that "feature" is that it'll be fast and easy to find the companies you already interact with in the real world.
Cue calls for boycotts of Facebook, and raging that the service will be irreparably destroyed by this new feature. But it will probably  pass - history tells us that Facebook's users rarely know what's good for them.
But a real concern must lie with security. Unauthorised access to your Facebook account used to mean a dodgy status update or two, but now a breach could have truly devastating consequences.
With one Facebook log-in, a hacker could have friction-free access to a whole host of accounts you may have set up on Messenger.
Having everything under the one Messenger roof presents unprecedented risk for our personal data, surely?
"Yes and no," says Mr Marcus.
"The reality is when you think about the number of people who are on the Facebook platform, and how well protected their account is compared to general practice around the world, we feel good that we have best-in-class protections that will protect those accounts better than most companies at a smaller scale can.
"We'll continue to build better and better systems. We always recommend that every user turns on two-factor authentication that we offer everyone.
"I certainly have."
Two-factor authentication on Facebook requires you to enter a code which has been texted to your mobile phone, as well as your password, to log in.
Despite Mr Marcus's clear advice, Facebook will not be enabling two-factor authentication by default, even though it is far more secure.
The truth is, if it did, people would complain. It's inconvenient. But it's safer. Your call.
Microsoft's boss Satya Nadella declared recently that "bots are the new apps".
And while we'll have to wait a little to see if Facebook's bots can live up to the expectations set at F8, it's rapidly becoming clear that the app era is winding down. Or more specifically, the era of having dozens of apps on your phone is coming to an end.
Mr Marcus pointed out a recent study by Forrester Research which estimated that 80% of the typical US smartphone user's time was spent in just five apps. Five!
Of the millions available to us, we just get stuck into using a few.
Bots within those big apps will perhaps be the only way some companies will be able to attract our business through our smartphones.
Mr Marcus has said Facebook has no plans to take a cut of transactions made through Messenger. Money will instead be made through advertising - pay more, and get your bot seen by more potential users.
So brace yourself, everyone. The bots are coming, and they desperately want to be your new best mate.
Follow Dave Lee on Twitter @DaveLeeBBC and on Facebook


A study of Irish Traveller genetics has suggested that they split socially from the settled population much earlier than thought.

The research was carried out by scientists from the Royal College of Surgeons in Ireland, University College Dublin, the University of Edinburgh and the Hebrew University of Jerusalem.
They say it shows the divergence may have began 360 years ago.
It also suggests Travellers are closely connected to Irish settled people.
The researchers found that any genetic disparities between Travellers and settled people in the Republic are largely due to them remaining genetically isolated for several centuries and their numbers decreasing.
It is thought there are about 30,000 people living in the Republic of Ireland who are members of the Travelling community, representing 0.6% of the total population.
Previously it had been thought that Travellers had become displaced between 1845 and 1852 as a result of the Great Famine.
"The findings confirm that the Irish Traveller population has an Irish ancestry and this comes at a time where the ethnicity of Travellers is being considered by the Irish state," the Royal College of Surgeons' Prof Gianpiero Cavalleri said.
"It is important to emphasise that although Irish Travellers show clear features of a genetic isolate, they are genetically very close to settled people in Ireland.
"It is also interesting to observe that the isolation of Travellers from settled people predates the Great Famine.
"However it's important to emphasise that our research estimates the beginning of the social divergence of the Travelling community, rather than their origin."
DNA samples from 42 Irish Travellers were compared with that of 143 European Roma, 2,232 settled Irish, 2,039 British, 5,964 European and 931 individuals from the rest of the world for the study.
Several genetic dating methods were also used to estimate the period when the travelling community began to split genetically from the settled population in Ireland.


A £35.1m Lotto jackpot - the biggest prize in the UK game's history - has been claimed by a single ticket, lottery operator Camelot has said.

The ticket matched the winning numbers in Wednesday's draw - 50, 57, 31, 17, 41 and 15 - to win £35,133,888.
Camelot has not revealed whether a syndicate or an individual held the ticket, or where it was bought.
The jackpot beats the previous record prize, won by two tickets that shared £66m in January.
Wednesday's jackpot will be paid out at a ticket validation appointment, and the winner will then decide whether or not to go public and share their news, Camelot said.
An entire village in North Yorkshire, with cash spare for renovating your 21-bed mansion
An 8ft yellow and blue painting by Mark Rothko
Seven private Rolling Stones concerts
A rare Blue Moon diamond, set in a ring
A shopping centre, home to an Argos and a Poundland, in Barking, east London
The National Lottery said it was delighted that the "life-changing win" had been claimed.
In January, David and Carol Martin, a couple from the Scottish Borders, shared the £66m jackpot with another winner, who chose to remain anonymous.
The prize, which was the result of 15 rollovers, broke a 21-year-old record.
Who advises overnight millionaires?
How four Lotto winners' lives changed
A few weeks later, Gerry and Lisa Cannings, from Deeping St James, near Peterborough, won £32.5m.
They waited a week to claim their prize because they were having their house redecorated.
The record prior to January's win was a jackpot of £22.5m, claimed by two business partners from St Leonards-on-Sea, Sussex, in 1995.
National Lottery jackpots have been dwarfed in recent years by those won by British winners of the Euromillions lottery.
Money for that prize comes from ticket sales in a number of European countries and the jackpot often rolls over for many weeks.
The biggest UK Euromillions winners are Colin and Chris Weir, from Largs in North Ayrshire, who collected £161.6m in 2011.
"When she won the lottery she was sitting here crying. It was too much stress for her" - Mother of Jane Park, who won £1m at the age of 17
"It will enrich her life so much and that's the most important thing on the agenda" - Paul and Debbie Lawton, who planned to use their £6.9m helping their three children, including their eldest daughter Tracey who has cerebral palsy
"Being Trotters we were always going to be millionaires one day" - Neil Trotter, who won £107.9m on the Euromillions lottery


The Turkish government has signed a deal with a Japanese-French consortium to build a new nuclear power station.

The $22bn (£14bn) contract is Japan's first successful bid for an overseas nuclear project since a tsunami wrecked the Fukushima power station.
The deal was signed by visiting Japanese Prime Minister Shinzo Abe.
Turkish Prime Minister Recep Tayyip Erdogan said it would transform relations with Japan into a "strategic partnership".
"What happened at Fukushima upset all of us. But these things can happen. Life goes on. Successful steps are being taken now with the use of improved technology," the Turkish prime minister added.
The deal comes as part of renewed efforts to promote Japanese nuclear technologies abroad, despite concerns over safety.
One of the Japanese firms included in the consortium is Mitsubishi Heavy Industries, one of the companies behind the Fukushima plant damaged in the 2011 earthquake and tsunami.
Turkey is also prone to earthquakes, and the government cited Japan's expertise in earthquake protection as one of the factors in signing the deal.
The other firms are Itochu Corporation and French utility group GDF Suez.
Japan is looking to boost exports of its technological expertise as it attempts to increase economic growth and escape two decades of near stagnation.
Fast-growing Turkey, meanwhile, is planning to invest in domestic energy generation to reduce its dependence on imports as the economy expands.
The new nuclear plant will be Turkey's second. It is currently dependent on imported oil and gas to meet 97% of its energy needs.


California regulators have accepted an offer from farmers to reduce their water usage by 25% in an effort to combat the record four-year drought.

A group of several hundred farmers made the concession after state officials threatened to cut their water rights.
California has already demanded a 25% reduction in cities and towns.
But critics say state Governor Jerry Brown has not done enough to reduce usage by the farming industry's powerful water rights holders.
The deal between California's Water Resources Control Board and the farmers - who have until now resisted pressure to commit to cutting back - is a sign of the worsening impact of California's drought.
The US Drought Monitor said on Thursday that 94% of California was in severe drought or worse, and farmers used 80% of all water taken from the land in the state.
The agreement is the first of its kind in more than 30 years, and involves farmers in the delta of the Sacramento and San Joaquin rivers.
Others in this category - known as senior rights holders - are irrigation districts, utilities with hydropower stations, and cities, including San Francisco.
Thousands of the state's junior water rights holders - those whose claims to water usage date back only as far as 1914 - have already had their water use curtailed this year. Those are mostly farmers getting no federal irrigation deliveries.
Under California's system, junior water rights holders have to stop taking water from rivers and streams so there is enough flow left to satisfy the demand of those with older claims.
About 350 farmers met on Thursday to discuss an attempt to avoid deeper mandatory cuts to their water allowance.
"That doesn't necessarily mean they'll all participate" in the voluntary 25% reduction, said Michael George, the state's water master for the delta. But he said he believed many would.
The farming industry has come under fire in recent weeks from residents who have been forced to turn off their sprinklers and time their showers under threat of heavy fines.
The agreement gives the farmers until 1 June to present plans for how they will make the proposed cuts.


A tiny new tracker designed to monitor bee behaviour is being tested by ecologists at Kew Gardens in London.

It is made from off-the-shelf technology and is based on equipment used to track pallets in warehouses, said its creator Dr Mark O'Neill.
Readers, used to pick up a signal from the kit, are connected to Raspberry Pi computers, which log the readings.
The device has a reach of up to 2.5m (8.2ft). Previously used models were restricted to 1cm (0.4in).
The tracker consists of a standard RFID (radio frequency identification) chip and a specially designed aerial, which Dr O'Neill has created to be thinner and lighter than other models used to track small insects, allowing him to boost the range.
The engineer, who is technical director at the Newcastle-based tech firm Tumbling Dice, is currently trying to patent the invention.
"The first stage was to make very raw pre-production tags using components I could easily buy", he said.
"I want to make optimised aerial components which would be a lot smaller."
"I've made about 50 so far. I've soldered them all on my desk - it feels like surgery."
The average "forage time" for a worker bee is around 20 minutes, suggesting they have a forage range of around 1km (0.6 miles) , Dr O'Neill explained.
The idea is to have readers dotted around a hive and flower patch in order to track the signals as the bees move around freely in the wild.
The tiny trackers, which are just 8mm (0.3in) high and 4.8mm (1.9in) wide, are stuck to the bees with superglue in a process which takes five to 10 minutes. The bees are chilled first to make them more docile.
"They make a hell of a noise," acknowledged Dr O'Neill.
He told the BBC he hoped that the trackers - which weigh less than a bee and are attached at their centre of gravity so as not to affect their flight - would remain attached for their three-month expected lifespan.
They have only been fitted to worker bees, which do not mate.
"If an animal ate one, I guess it would have a tracker in its stomach," Dr O'Neill said.
"But the attrition rate for field worker bees is very low. Most die of old age - they are very competent, and good at getting out of the way."
Dr Sarah Barlow, a restoration ecologist from Kew Gardens, was involved in testing the as-yet unnamed trackers.
"These tags are a big step forward in radio technology and no one has a decent medium to long range tag yet that is suitable for flying on small insects," she said.
"This new technology will open up possibilities for scientists to track bees in the landscape.
"This piece of the puzzle, of bee behaviour, is absolutely vital if we are to understand better why our bees are struggling and how we can reverse their decline."


Worcester have been hit by their second major injury inside a week having been told that they face most of the rest of the season without winger Tom Biggs.

The 31-year-old Yorkshireman has been ruled out for "up to three months" with the ankle injury he suffered in Worcester's 32-22 defeat at Wasps.
It comes after scrum-half Jonny Arr was sidelined for "three to four months at least" with a knee injury.
Arr was hurt late on in the 24-20 home defeat by Harlequins on 3 January.
And it now looks like the Warriors could be without their first-choice number nine for the rest of the season.
He was an unexpected absentee for the Wasps game, and it has since emerged that he has suffered a lateral medial knee ligament injury.
Warriors have also been without skipper GJ Van Velze (knee) since November, while flanker Sam Betty and stand-off Tom Heathcote are still to return after concussion.
As for Biggs, head coach Carl Hogg confirmed: "It's a reasonably significant injury. We are hoping he doesn't need surgery, but it could be two to three months by the sound of it."
After completing their disappointing European Challenge Cup campaign with a trip to La Rochelle on Friday, Warriors are due to return to Premiership action at home to Exeter Chiefs on Sunday, 31 January.
Hogg continued: "We are fairly fortunate we have Cooper Vuna fit and healthy, and Bryce Heem has been away in New Zealand getting married. He will return for the Exeter game."
With nine games gone of a league campaign delayed by the Rugby World Cup, Dean Ryan's Worcester still have a battle on to avoid relegation.
They lie 10th, five points clear of bottom club Newcastle.


A former NHS equality boss has been warned she could face jail for swindling £11,000 by diverting funds to her husband.

Paula Vasco-Knight, 53, broke down as she changed her plea on the second day of her trial at Exeter Crown Court.
She used £11,072 of NHS cash to pay her husband Stephen, 46, for work on an equality and diversity publication called Transform, which never existed.
Her husband also changed his plea to admit fraud.
More on the fraud case and other stories from Devon and Cornwall
Former nurse Vasco-Knight, of Runcorn, Cheshire, shook and sobbed uncontrollably as she changed her plea to one of the two charges of fraud she faced.
Recorder Don Tait adjourned sentence until March but warned the Vasco-Knights that a "custodial sentence is a distinct possibility".
He told the jury: "As far as Mrs Vasco-Knight is concerned, she has fallen a long way, hasn't she, but that is her responsibility."
Vasco-Knight was CEO at the South Devon NHS Foundation Trust and the national lead for equalities for NHS England when the offence occurred.
The newsletter was commissioned by her in April 2013 and produced by her husband's firm Thinking Caps that July, the court heard.
But it was a "sham", cut and pasted from a research paper by the Kings Fund charity, said Gareth Evans, prosecuting.
He said Vasco-Knight's failure to declare an interest in Thinking Caps was a criminal offence and a "massive breach of trust and abuse of her position as chief executive".
Vasco-Knight later tried to blame Habib Naqvi, a senior manager in the NHS, for commissioning the newsletter.
Mr Naqvi, 28, of Bristol, was cleared of two counts of aiding and abetting.
The prosecution offered no evidence on the second fraud charge against Mrs Vasco-Knight of swindling £9,000 from the NHS.
She and her husband were released on bail to 10 March for sentencing.
Sue Frith, managing director of NHS Protect, which conducted the investigation, said Vasco-Knight's meteoric career path had been "an inspiration to so many" and her fraud was a "huge disappointment and shock to many".


World champion Lizzie Armitstead finished six seconds off the pace after the opening prologue at the Giro Rosa.

The Briton is 11th after completing the 2km course in Gaiarine that precedes the nine-stage race across Italy in two minutes 29 seconds.
Fellow Britons. Molly Weaver and Emma Pooley, were eight and 11 seconds back.
Canada's Leah Kirchmann is the early leader after stopping the clock on 2:23, less than a second quicker than Dutch rider Thalita De Jong.
Prologue result:
1.  Leah Kirchmann (Can/Liv-Plantur)            2mins 23secs
2.  Thalita De Jong (Ned/Rabo Liv)               +1sec
3.  Anna van der Breggen (Ned/Rabo Liv)      same time
4.  Megan Guarnier (US/Boels Dolmans)         +3secs
5.  Roxane Knetemann (Ned/Rabo Liv)           same time
6.  Tiffany Cromwell (Aus/Canyon-SRAM)      +4secs
Selected others:
11.  Lizzie Armitstead (GB/Boels Dolmans)    +6secs
20.  Molly Weaver (GB/Team Liv-Plantur)   +8secs
41. Emma Pooley (GB/Lotto Soudal)  +11secs
93. Abby-Mae Parkinson (GB/Servetto Footon)   +17secs
Overall Standings:
1.  Leah Kirchmann (Can/Liv-Plantur)            2mins 23secs
2.  Thalita De Jong (Ned/Rabo Liv)               +1sec
3.  Anna Van Der Breggen (Ned/Rabo Liv)      same time
4.  Megan Guarnier (US/Boels Dolmans)         +3secs
5.  Roxane Knetemann (Ned/Rabo Liv)           same time
6.  Tiffany Cromwell (Aus/Canyon-SRAM)      +4secs
Selected others:
11.  Elizabeth Armitstead (GB/Boels Dolmans)    +6secs
20.  Molly Weaver (GB/Team Liv-Plantur)   +8secs
41. Emma Pooley (GB/Lotto Soudal)  +11secs
93. Abby-Mae Parkinson (GB/Servetto Footon)   +17secs