Kei Nishikori suffered defeat on his ATP Tour return at the Generali Open as Miomir Kecmanovic fought back from a set down to defeat the former US Open finalist.

Nishikori has been sidelined since August 2019 following surgery on a right elbow injury.

He won the first five games in Kitzbuhel and took the first set but Nishikori - a finalist at Flushing Meadows in 2014 - could not prevent Kecmanovic, coming off a second-round exit in New York, from producing a turnaround.

Kecmanovic claimed a 4-6 6-4 6-2 win but the former world number four took the positives from his display.

"I was not 100 per cent, but I was happy with the way I played," Nishikori said. "I was not fit enough and maybe if I finished in two sets it would have been different, as I had some chances.

"It's a shame, as I could have won today, but it was a good moment and I'm positive today. I was hitting the ball better in the altitude, so it wasn't easy, but I do like it. I'll try to be better prepared for next week."

Elsewhere in the draw, Hubert Hurkacz progressed to the second round with a straight-sets win over Joao Sousa, Guido Pella beat Yoshihito Nishioka and Sebastian Ofner overcame Radu Albot.

Daniil Medvedev and Dominic Thiem continued their impressive runs to reach the US Open quarter-finals on Monday.

With Novak Djokovic out, the men's draw in New York is wide open and a first-time grand slam winner will be crowned at Flushing Meadows.

Medvedev and Thiem are the main contenders and they showed just why with tremendous last-16 wins.

Meanwhile, Andrey Rublev and Alex de Minaur also reached the quarter-finals.

 

MEDVEDEV MARVELLOUS AGAIN

Last year's runner-up, Medvedev crushed American Frances Tiafoe 6-4 6-1 6-0.

The Russian third seed was in impressive form to win through in just 98 minutes on Arthur Ashe Stadium.

Medvedev has lost just 29 games through his opening four wins at the tournament.

He is into the quarter-finals of a major for just the second time in his career and first since his run to the decider last year.

THIEM FLIES PAST AUGER-ALIASSIME

A three-time grand slam runner-up, Thiem was expected to be tested by Canadian 15th seed Felix Auger-Aliassime.

But the Austrian second seed needed just over two hours to advance 7-6 (7-4) 6-1 6-1.

While Thiem was solid with 23 winners and 24 unforced errors, Auger-Aliassime finished with 51 unforced errors.

Although Djokovic is out and Roger Federer and Rafael Nadal are not playing, Thiem said he was staying focused.

"There is a difference that none of these three are left in the draw. That's the only difference," he said.

"But for me personally, it never mattered. I just always tried to focus on my next match. My focus or my concentration, it's the same. It doesn't matter if I play one of the big three members or if I play somebody else.

"Well, I mean, what happened happened. Nobody of the other players has any or had any influence of that. We just need to focus and focus on ourselves.

"Of course, it's probably a little bit of a bigger chance for all of us to win the first slam, but basically the things didn't change that much, at least for myself."

 

RUBLEV, DE MINAUR REACH QUARTERS

Next up for Medvedev is Rublev in an all-Russian quarter-final.

Rublev overcame last year's semi-finalist Matteo Berrettini 4-6 6-3 6-3 6-3 in a clash between two seeds.

He reached a second career grand slam quarter-final and first since the 2017 US Open.

De Minaur's run continued with a 7-6 (8-6) 6-3 6-2 victory over Vasek Pospisil.

The Australian 21st seed is into the last eight at a major for the first time in his career and will face Thiem.

Novak Djokovic faces being labelled a "bad guy" for the rest of his career after his US Open disqualification for striking a line judge with a ball, and John McEnroe has told him he needs to embrace that role.

World number one Djokovic was 6-5 down in the first set of his fourth-round match against Pablo Carrena Busta on Sunday when he struck a ball in frustration as he headed back to his chair.

The wayward ball struck a female line judge in the throat and caused her to stumble to the floor, and although Djokovic pleaded with the officials, he was defaulted and disqualified from the competition.

It is the latest in a string of controversies involving Djokovic, who earlier this year attracted widespread criticism for the organisation of the Adria Tour event at the height of the coronavirus pandemic, with the competition failing to adhere to social distancing guidelines and resulting in several players – including the Serbian – testing positive for COVID-19.

He has since announced plans to lead a breakaway union despite opposition from the likes of Roger Federer and Rafael Nadal, and McEnroe – who himself was depicted as something of an 'enfant terrible' during his playing days – thinks Djokovic has to accept his new-found villain status.

"The pressure just got to him. I think a lot has been going on off the court," four-time US Open winner McEnroe told ESPN.

"It's obviously affected him and whether he likes it or not, he's going to be the bad guy the rest of his career.

"If he embraces that role, I think he could recover. He's got a lot of things going for him, but this is a stain that he's not going to be able to erase."

But McEnroe, who was defaulted from the Australian Open in 1990 for three code violations in a single match, was scathing of Djokovic's decision to not hold a post-match media conference and instead apologise via social media.

"You've got to man up," the American added. "It made no sense to me. In the past I've seen him take responsibility when he's blown it. In this case it makes it even worse.

"So what if he apologised on Twitter... that's not good enough."

Nick Kyrgios reckons he would have been slapped with a lengthy ban if he had struck a linesperson, as Novak Djokovic did at the US Open.

World number one Djokovic was stunningly disqualified after hitting the official with a ball during his last-16 clash with Pablo Carreno Busta.

It was not intentional, but nonetheless the Serbian's careless act saw him kicked out of the tournament he was favourite to win.

There is no love lost between Kyrgios, who has endured his own disciplinary issues, and Djokovic, with the Australian claiming he would suffer a far worse punishment.

He tweeted: "Swap me for jokers incident. 'Accidentally hitting the ball kid in the throat' how many years would I be banned for?"

Underneath was a list of three answers, offering followers to choose the length of his hypothetical ban in years.

Of the available options – five, 10 and 20 years – the latter was the most popular, with more than half of the almost 160,000 votes cast.

Kyrgios has been critical of Djokovic's approach to the coronavirus crisis, with the 17-time grand slam winner having organised an exhibition tour at which several players contracted COVID-19.

In May last year, Kyrgios was himself defaulted from a match after reacting badly to receiving a game penalty for unsportsmanlike conduct in a second-round clash with Casper Ruud at the Italian Open.

Kyrgios kicked out in disgust and launched a chair before walking off as he was disqualified by the umpire.

Djokovic did not partake in any media activities after his moment of madness, but he did post a message on Instagram.

"This whole situation has left me really sad and empty," he said.

"I checked on the line person and the tournament told me that thank God she is feeling ok. I'm extremely sorry to have caused her such stress. So unintended. So wrong. I'm not disclosing her name to respect her privacy.

"As for the disqualification, I need to go back within and work on my disappointment and turn this all into a lesson for my growth and evolution as a player and human being.

"I apologise to the @usopen tournament and everyone associated for my behaviour. I'm very grateful to my team and family for being my rock support, and my fans for always being there with me. Thank you and I'm so sorry."

Djokovic's exit means there will be a first-time major winner in the men's draw in New York.

Alexander Zverev and Denis Shapovalov reached the US Open quarter-finals as Novak Djokovic sensationally defaulted on Sunday.

Djokovic's bid for an 18th grand slam title came to an end after he was disqualified at Flushing Meadows.

The Serbian's stunning exit has opened up the men's draw, with a first-time grand slam winner set to be crowned in New York.

Zverev and Shapovalov remain in contention for their maiden major triumphs after impressive wins.

 

ZVEREV, SHAPOVALOV INTO LAST EIGHT

Zverev, the German fifth seed, needed just one hour, 34 minutes to crush Spaniard Alejandro Davidovich Fokina 6-2 6-2 6-1.

The 23-year-old Zverev progressed to his fourth grand slam quarter-final and first at the US Open after the comfortable win.

He hit 39 winners and 22 unforced errors in a straightforward victory.

Shapovalov, 21, also progressed thanks to a hard-fought 6-7 (0-7) 6-3 6-4 6-3 win over David Goffin.

The Canadian 12th seed needed three and a half hours and 51 winners to reach a grand slam quarter-final for the first time.

Shapovalov became the first Canadian man to reach the quarter-finals at the US Open in the Open Era.

Before Sunday, Shapovalov would have been expecting to face Djokovic in the last eight before the drama on Arthur Ashe Stadium.

 

DJOKOVIC DEFAULTS

The favourite to win the major, Djokovic was defaulted during his fourth-round clash with Pablo Carreno Busta.

Djokovic had just been broken to fall 6-5 behind in the first set when he hit a ball that struck a linesperson, leading to his disqualification.

The three-time US Open winner later posted an apology on social media as he bowed out in extraordinary circumstances.

"This whole situation has left me really sad and empty. I checked on the linesperson and the tournament told me that thank God she is feeling ok," Djokovic wrote. "I'm extremely sorry to have caused her such stress. So unintended. So wrong. I'm not disclosing her name to respect her privacy.

"As for the disqualification, I need to go back within and work on my disappointment and turn this all into a lesson for my growth and evolution as a player and human being.

"I apologise to the @usopen tournament and everyone associated for my behaviour. I'm very grateful to my team and family for being my rock support, and my fans for always being there with me. Thank you and I'm so sorry."

 

CORIC INTO FIRST QUARTER-FINAL

Borna Coric backed up his incredible win over Stefanos Tsitsipas by easing past Australian Jordan Thompson 7-5 6-1 6-3.

The Croatian 27th seed was too good for Thompson on his way to a first major quarter-final, where Zverev awaits.

"Look, definitely it's a very good chance for all of us. Again, like I said, I think maybe like a couple minutes ago, I need to focus on my next match and on my next opponent, which is a very, very tough opponent," Coric said afterwards.

"There's going to be new grand slam champion, for sure. Yeah, that could potentially can happen that some of us can do something more in the future. But again, it doesn't mean anything. I'm really looking forward to seeing who it's going to be. I think we all have a very good chance. Yeah, it's going to be very interesting.

"For me, the most important is just to focus on the next match, like I said at the beginning. I cannot focus on the finals or what happened earlier in the day. I just need to focus on my next match."

Remember Roger Federer's first grand slam title, or Rafael Nadal's major debut?

Both came at Wimbledon in 2003, which is the last time – before this year's US Open – when the quarter-finals of a grand slam did not feature a previous male major champion.

With Federer and Nadal absent in New York, Novak Djokovic stunningly defaulted after hitting a linesperson with a ball in his last-16 clash with Pablo Carreno Busta.

There will be a maiden male grand slam winner for the first time since 2014, when Marin Cilic claimed the title at Flushing Meadows.

While the quarter-finals are set to be packed with talented youngsters, we take a look back at what that tournament at Wimbledon in 2003 looked like.

Hewitt, Agassi fall early

The defending champion and top seed, Lleyton Hewitt was stunned in the opening round at the All England Club.

The Australian fell to Croatian Ivo Karlovic 1-6 7-6 (7-5) 6-3 6-4 in a huge upset.

Hewitt had won the second of his two grand slams the previous year, but was shocked by the big-serving Karlovic to become just the second defending champion to bow out in the first round of the tournament.

"The first, I was completely – I mean, I was scared," Karlovic said afterwards. "After I saw that I can beat him, I start to play more better."

An eight-time grand slam winner whose last success had come at the Australian Open in 2003, Agassi made the fourth round before being edged by Mark Philippoussis 6-3 2-6 6-7 (4-7) 6-3 6-4.

Philippoussis would go on to reach his second grand slam final, but fell short against a 21-year-old Federer.

The other previous major winners in the draw were Juan Carlos Ferrero, who had just won the French Open, Yevgeny Kafelnikov and Gustavo Kuerten.

Ferrero lost to Sebastien Grosjean in the fourth round, Kuerten departed in the second and Kafelnikov in a five-set loss to Raemon Sluiter in the first.

Federer takes his chance as Nadal makes debut

Federer was already the fourth seed heading into Wimbledon, and 2003 would mark the beginning of an era of success.

The Swiss had reached the quarter-finals two years prior, his reputation enhanced by an incredible five-set win over Pete Sampras.

But 2003 was comfortable for Federer, easing into the last eight before wins over Sjeng Schalken, Andy Roddick and Philippoussis.

Philippoussis had gone through five-setters against Agassi and Alexander Popp before beating Grosjean in the semis.

Grosjean had ended Tim Henman's latest home bid in the quarters, while Roddick had cruised past Jonas Bjorkman before falling to Federer.

Federer would win five straight Wimbledon titles and a record eight, while his 20 overall is also the most of men.

The man who would become one of his great rivals, Nadal, made his debut at a grand slam.

The 17-year-old Nadal beat Mario Ancic and Lee Childs before losing to Paradorn Srichaphan. The first of Nadal's 12 French Open titles came two years later, while his Wimbledon successes have come in 2008 and 2010.

Novak Djokovic apologised for hitting a linesperson and being disqualified at the US Open, saying he was feeling "really sad and empty".

World number one Djokovic was stunningly disqualified after hitting a linesperson with a ball during his last-16 clash with Pablo Carreno Busta.

The Serbian, who skipped his news conference, later released a statement apologising, saying he would learn from his actions.

"This whole situation has left me really sad and empty," Djokovic wrote in a statement posted on social media.

"I checked on the line person and the tournament told me that thank God she is feeling ok. I'm extremely sorry to have caused her such stress. So unintended. So wrong. I'm not disclosing her name to respect her privacy.

"As for the disqualification, I need to go back within and work on my disappointment and turn this all into a lesson for my growth and evolution as a player and human being.

"I apologise to the @usopen tournament and everyone associated for my behaviour. I'm very grateful to my team and family for being my rock support, and my fans for always being there with me. Thank you and I'm so sorry."

Favourite to win the US Open and his 18th grand slam title, Djokovic's exit means there will be a first-time major winner in the men's draw in New York.

Alexander Zverev was "in shock" after Novak Djokovic was defaulted at the US Open on Sunday.

World number one Djokovic was stunningly disqualified after hitting a linesperson with a ball during his last-16 clash with Pablo Carreno Busta.

It means there will be a first-time grand slam champion in the men's draw, with Zverev among the contenders at Flushing Meadows.

Speaking after his 6-2 6-2 6-1 thrashing of Alejandro Davidovich Fokina, the German fifth seed was in disbelief to see Djokovic exit in such a manner.

"I don't think I have ever gotten defaulted yet in my career or in my life. No, I haven't been in a situation like that. But as I said, it's very unlucky, very unfortunate," Zverev told a news conference.

"The decision was made I think by the supervisors, and as I said, they are just doing their job. There is nothing much else I can say to that. I don't know. I mean, I don't know what to say. I'm a little bit in shock right now, to be honest."

Zverev will face either Croatian 27th seed Borna Coric or Australian Jordan Thompson in the quarter-finals.

A semi-finalist at the Australian Open this year, Zverev said he was excited by the men's draw in New York.

"There's going to be a new grand slam champion. That's all I know right now. There's no past grand slam champions left in the draw," he said.

"It's going to be one of the young guys, I think, if you count Dominic Thiem as a young guy, as well. He obviously has a chance to win, as well.

"Now it gets interesting. Now I think is the time where it gets really interesting. Yeah. I know who is where in the draw. I know who I can play. I know who the rest of the guys can play. Yeah. We'll see where we go from here."

Pablo Carreno Busta described Novak Djokovic's disqualification from the US Open for hitting a lineswoman with a ball as "bad luck". 

Djokovic was defaulted from the fourth-round clash at Flushing Meadows after reacting to being broken by Carreno Busta by hitting a spare ball away in disgust.

The ball struck the line judge who was audibly left gasping for air, with Djokovic joining another line official in coming to her assistance.

Djokovic pleaded his case to tournament officials but was eliminated from the tournament and will forfeit all ranking points and prize money gained from progressing to the last 16.

Carreno Busta, meanwhile, can now prepare for a last-eight meeting with either David Goffin or Denis Shapovalov.

"It's just a moment, I broke him the serve, he throw the ball," Carreno Busta said of the incident in a post-match media conference.

"I think it was bad luck. You cannot do this but of course I think Novak never want to hit the line umpire.

"The rules are the rules. I think both the referee and the supervisor do the right thing."

Djokovic did not make himself available for any post-match media commitments and reportedly left the site at Flushing Meadows.

Novak Djokovic's latest opportunity to close in on Roger Federer's record for the most grand slams won by a male player ended in remarkable circumstances at the US Open on Sunday.

With Federer and fellow legend Rafael Nadal absent in New York, Djokovic was the overwhelming favourite to move to 18 majors – just two shy of the Swiss great.

But Djokovic was defaulted in his fourth-round match against Pablo Carreno Busta after hitting a linesperson with a ball.

The Serbian, who had just dropped serve to fall 6-5 down in the first set, immediately apologised and another judge came over to help the woman who audibly gasped for air.

Below we take a look at some of the most famous examples of players being defaulted on the ATP Tour.

 

John McEnroe - January 1990

McEnroe was playing the relatively unknown Swede Mikael Pernfors in the fourth round of the Australian Open but saw his tournament come to an end after three separate code violations. The then-world number one received his first for intimidating a linesperson, the second for racket abuse and his third for swearing at the umpire and the tournament referee. McEnroe was leading two sets to one at the time, wasting an opportunity to win a trophy he never managed to lift.

Tim Henman - June 1995

Wimbledon's cult hero Henman and doubles partner Jeremy Bates became the first players in the Open Era to be defaulted from the tournament after he accidentally fired a ball into the head of a ball-girl. Their doubles match with Jeff Tarango and Henrik Holm was in a fourth-set tie-break with Henman and Bates up two sets to one, and a disbelieving crowd booed the decision as the players were forced to leave Court 14.

Stefan Koubek - June 2000, October 2007 and June 2010

Djokovic at least cannot yet be grouped with Koubek, who was remarkably disqualified from the main draw three times in his tennis career. In the 2000 French Open he threw his racket and it hit a ballboy, and he had already received three warnings during the match. Seven years later Koubek was the subject of a straightforward default for using abusive language to Metz tournament supervisor Thomas Karlberg, although he protested the insult was "out of the situation and not against Karlberg personally". In 2010, the same man was sensationally disqualified from an Austria League match for grabbing opponent Daniel Kollerer by the throat at the changeover.

David Nalbandian - June 2012

Nalbandian's default cost him the title at Queen's Club, with his remarkable misdemeanour coming in the 2012 final against Marin Cilic. After losing a point, Nalbandian angrily kicked a nearby advertising board, hitting the linesperson sat behind it in the right leg. Although the player quickly sought to apologise, the injured man hopped around pointing at his bloody shin. "I'm very sorry," Nalbandian said, before adding to boos: "Sometimes we feel a lot of pressure from the ATP to play a lot of tournaments."

Denis Shapovalov – February 2017

Now regarded as one of the men's game's best emerging talents, Shapovalov had a moment to forget during a Davis Cup tie for Canada against the United Kingdom while aged 17 over three years ago. After dropping serve to trail Kyle Edmund 6-3 6-4 2-1, Shapovalov smashed the ball in annoyance and struck French umpire Arnaud Gabas in the eye. He later described himself as "incredibly ashamed and embarrassed" as the result meant Great Britain won the tie.

Nick Kyrgios – May 2019

One of the most naturally gifted but controversial players on the ATP Tour, it is little surprise to see Kyrgios' name appear on this list. The Australian reacted badly to receiving a game penalty for unsportsmanlike conduct in a second-round clash with Casper Ruud at the Italian Open. Kyrgios kicked out in disgust and launched a chair before walking off as he was disqualified by the umpire.

The decision to default Novak Djokovic from the US Open for hitting a linesperson with the ball was the correct call, according to Billie Jean King.

World number one Djokovic was disqualified during his fourth-round match against Pablo Carreno Busta after dropping serve to trail 6-5 on Sunday.

As he made his way back towards his chair, the Serbian hit a ball towards the back of the court and it connected with a line judge, who audibly gasped for air.

Djokovic went over to assist the woman but, following a lengthy conversation with the match officials, was defaulted for "intentionally hitting a ball dangerously or recklessly within the court or hitting a ball with negligent disregard of the consequences".

The 17-time major champion was the favourite to win the grand slam in New York and his exit leaves the men's singles draw wide open.

King wrote on Twitter: "Here are my thoughts on the Novak Djokovic default.

"First, I hope the line judge is okay. The rule is the rule. It is unfortunate for everyone involved, but in this specific situation the default was the right call."

Prior to seeing Carreno Busta break his serve, Djokovic received treatment on his shoulder have failed to convert any of the three set points he engineered in the 10th game.

Daniil Medvedev rolled into the US Open fourth round and he was joined by Dominic Thiem on Saturday.

Russian third seed Medvedev – last year's runner-up – eased past J.J. Wolf in straight sets at Flushing Meadows in New York.

Thiem, who is seeded second for this year's grand slam, ousted 2014 US Open champion Marin Cilic.

As for exciting 15th seed Felix Auger-Aliassime, he completed Canadian history.

 

MEDVEDEV CRUISES INTO LAST 16

The Russian produced another dominant performance, beating Wolf 6-3 6-3 6-2 in one hour, 48 minutes.

Medvedev has not lost more than four games in a set through three matches, breaking seven times against his American opponent.

"It's good that I managed to win in three sets and I didn't even have to play [to] 7-5 because six months of not playing tennis, it's not easy to recover from playing five or four-set matches," Medvedev said. "With a day off and just a three-setter to play, I'm feeling good." 

Next up for Medvedev is 2019 Australian Open quarter-finalist Frances Tiafoe, who reached the US Open fourth round for the first time after taking down Marton Fucsovics 6-2 6-3 6-2.

 

 

THIEM OUSTS CILIC

Cilic put up a fight but three-time slam finalist Thiem was too good in a 6-2 6-2 3-6 6-3 victory in the night session.

Thiem hit 38 winners as he moved through to the second week of the US Open for the fifth time in seven appearances.

"I'm not 100 per cent yet. I still have to raise my level if I want to go deeper," Thiem said after two hours, 27 minutes on court. "I'm normally capable of doing this in the Slams [and] hopefully here as well."

 

OH CANADA!

Thiem will meet Auger-Aliassime in the round of 16 after the Canadian sensation dispatched Corentin Moutet 6-1 6-0 6-4.

Two days after eliminating 2012 winner Andy Murray, Auger-Aliassime impressed again as he joined countrymen Denis Shapovalov and Vasek Pospisil in the fourth round – the first time three Canadian players have reached the second week.

The 20-year-old Auger-Aliassime also became the first player born in the 2000s to advance to a grand slam fourth round.

Last year's semi-finalist and sixth seed Matteo Berrettini, 10th seed Andrey Rublev and 21st seed Alex de Minaur also progressed.

Borna Coric and Denis Shapovalov produced incredible comebacks at the US Open, while Novak Djokovic eased into the last 16.

Coric and Shapovalov looked set for third-round exits at Flushing Meadows before fighting back for stunning wins on Friday.

Djokovic, meanwhile, had far fewer problems as he stayed on track for an 18th grand slam title.

There was also drama in New York before Alexander Zverev's third-round victory over Adrian Mannarino.

 

CORIC, SHAPOVALOV IN EPIC COMEBACKS

Coric was staring at an exit before responding to stun Greek fourth seed Stefanos Tsitsipas 6-7 (2-7) 6-4 4-6 7-5 7-6 (7-4).

Trailing by two sets to one, Coric – the Croatian 27th seed – fell 5-1 behind in the fourth against Tsitsipas on Louis Armstrong Stadium.

However, he saved six match points and won six consecutive games to force a decider.

After another thrilling battle, Coric came from a break down in the fifth set to reach the fourth round of a grand slam for the third time in his career.

Coric will next face Jordan Thompson after the Australian brushed past Mikhail Kukushkin 7-5 6-4 6-1.

Shapovalov also looked set for an exit against American 19th seed Taylor Fritz.

The Canadian 12th seed trailed 5-2 in the fourth set before recovering to win 3-6 6-3 4-6 7-6 (7-5) 6-2.

Shapovalov incredibly finished with 60 winners and 33 unforced errors to reach the fourth round of a grand slam for the second time in his career.

He will meet David Goffin after the Belgian seventh seed proved too good for Filip Krajinovic 6-1 7-6 (7-5) 6-4.

 

NO DRAMA FOR DJOKOVIC

Djokovic's comfortable run continued with a 6-3 6-3 6-1 win over Jan-Lennard Struff on Arthur Ashe Stadium.

The world number one improved to 26-0 in 2020 and he has dropped just one set through his first three rounds in New York.

Djokovic has now made at least the fourth round in his previous 13 appearances at the US Open, where he is a three-time champion.

The Serbian had won all four of his previous meetings with Struff, including twice this year, and he outclassed the German 28th seed again.

Djokovic will next face Pablo Carreno Busta after the Spanish 20th seed eased past Ricardas Berankis 6-4 6-3 6-2.

 

OFF-COURT DRAMA IN NEW YORK

Zverev's clash with Mannarino was delayed after health officials did not want the Frenchman to play.

Mannarino was one of the players put in a "bubble within a bubble" in New York after being in contact with Benoit Paire, who tested positive for coronavirus.

The Frenchman's third-round clash with Zverev was delayed before he was allowed to play, suffering a 6-7 (4-7) 6-4 6-2 6-2 loss to the German fifth seed.

Zverev moved into the fourth round, where Alejandro Davidovich Fokina awaits.

Davidovich Fokina got past Cameron Norrie 7-6 (7-2) 4-6 6-2 6-1.

Adrian Mannarino revealed health officials told him he should not be allowed to face Alexander Zverev at the US Open before being cleared to play.

Mannarino was one of the players put in a "bubble within a bubble" in New York after being in contact with Benoit Paire, who tested positive for coronavirus.

The Frenchman's third-round clash with Zverev was delayed before he was allowed to play, suffering a 6-7 (4-7) 6-4 6-2 6-2 loss to the German fifth seed.

Mannarino explained he was ready to go on Friday before officials intervened.

"Well, I was preparing to go on court. Actually, it was like 2.30pm. We knew there was a not before 2.30pm. I was just trying to get ready, warming up with my coach. I was actually ready to go on court. It was 2.30pm or something," he told a news conference.

"The tour manager came to talk to me at this time. He explained me the situation. Obviously, the State Department of Health took over the city actually. The city actually allowed me to play with a new protocol on Sunday. Obviously the state took over this decision to say that I've been exposed to a positive case obviously, so I should be quarantined in my room and not be able to go on the tennis court and play the match.

"They told me they were trying to contact on phone some guys to see if this decision could be changed. Obviously, many efforts have been done. They told me, 'Okay, we decided to put your match not before 5.00pm'. Sascha [Zverev] agreed, which is nice. They told me, 'We're going to have a look at the situation, trying to see if we can get you on court today', which obviously they did.

"Many things might have been happening during this time. I was just trying to get ready. I said myself to be ready to go on court at 5.00pm. I told my coach if anything happens, I give him my phone, I say, 'Just try to see what's going on, I'll let you handle all these things, I'm just going to try to eat something, get ready, focus, just be prepared as if I was going on court at 5.00pm. Let's see if I'm not able to go, then I'm not able to go. But if I'm in a position to be able to play, I just want to be ready'.

"I just want to be thankful to all these people who have been trying to get me on court today. As I say, many efforts have been done. I was able to play my tennis match. I'm pretty happy about that.

"Then I heard actually around 4.30pm or 4.40pm that I've been allowed to go on court today. I needed to be prepared to go at 5.00pm, which I did. Happen what happened. Unfortunately I lost the match. But still, as I said, I'm happy I was on court."

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