Harmony Tan's unexpected first-round singles win over Serena Williams at Wimbledon prompted her to quit the doubles tournament, leading to a social media rant from her partner, who suggested she was not cut out for professional tennis.

Tan had entered the doubles draw alongside Tamara Korpatsch, with their first-round match against Raluca Olaru and Nadiia Kichenok set for Wednesday.

But Tan perhaps had not expected to be playing late into Tuesday evening and then to have a second-round singles contest to prepare for against Sara Sorribes Tormo on Thursday.

The Frenchwoman came through an epic back-and-forth on Centre Court to beat seven-time champion Williams – in singles action for the first time in almost a year – 7-5 1-6 7-6 (10-7).

Tan gained little sympathy from Korpatsch, however, with the German out of the singles competition on Monday following a three-set defeat to Heather Watson.

"Unfortunately my doubles partner H. Tan retired from our doubles today," Korpatsch wrote on her Instagram page.

"She just texted me this morning. Let me wait here one hour before the match start.

"I'm very sad, disappointed and also very angry that I can't play my first doubles grand slam. And it's really not fair for me. I didn't deserve that.

"She asked me before the tournament if we wanna play doubles and I said yes, I didn't ask her, she asked me!

"If you're broken after a three-hour match the day before, you can't play professional. That's my opinion."

Korpatsch's frustration continued on her Instagram story, where she had initially revealed the news, suggesting she was capable of playing more than six hours one day and still taking to the court the next.

She later added: "Thanks for all your comments. But I would like to say: I don't hate my doubles partner for withdrawing. I just want to share my feelings and opinion about my situation.

"If I'm still competing in singles, I would still feel and do the same. I wanted to play my first doubles grand slam. That was my chance.

"Yesterday she [Tan] was so motivated to me, and I was happy about our doubles.

"But just today in the morning getting this message feels very painful. It's not a WTA tournament, which I can play almost every week. It's a grand slam."

Defending champion Novak Djokovic outclassed Thanasi Kokkinakis in a domineering straight-sets victory to march into the third round at Wimbledon.

The top seed moved majestically as he made a statement on Centre Court, winning 6-1 6-4 6-2 in just two hours on Wednesday.

Djokovic breezed into a 3-0 lead in an opening set he served out to love after breaking for a second time, returning majestically as he dominated the Australian.

The 20-time grand slam champion needed just the one early break in the second set as he served superbly and was ruthless at the net, while also bossing rallies from the back of the court.

World number three Djokovic was relentless as he broke twice in a one-sided third set before ending the match with a hold after saving the only break point he faced.

Six-time Wimbledon champion Djokovic will face fellow Serbian Miomir Kecmanovic in round three at the All England Club.

Data slam: Djokovic near flawless as he extends winning run to 23

That is 23 wins in a row at the grass-court grand slam for three-time defending champion Djokovic.

The tournament favourite dropped a set in his win over Kwon Soon-woo on Monday, but barely put a foot wrong two days later.

WINNERS/UNFORCED ERRORS
Djokovic – 29/14
Kokkinakis – 31/23

ACES/DOUBLE FAULTS
Djokovic – 1/3
Kokkinakis – 11/5

BREAK POINTS WON
Djokovic – 5/13
Kokkinakis – 0/1

Jule Niemeier claimed the biggest scalp of her career by knocking second seed Anett Kontaveit out of Wimbledon with an emphatic straight-sets win on Wednesday.

Playing her first match against a top-10 player, world number 97 Niemeier moved into the third round with a 6-4 6-0 victory on No.1 Court.

Kontaveit did not earn a solitary break point as she made another early grand slam exit after falling in the first round at the French Open.

The number-three ranked Estonian, who was knocked out of Wimbledon in the opening round last year, has been suffering from the after-effects of coronavirus over the past couple of months.

German outsider Niemeier was beaten in her first main-draw grand slam match at the French Open last month, but took just 58 minutes to set up a third-round meeting with Anhelina Kalinina or Lesia Tsurenko.

The 22-year-old became the lowest-ranked female player to win a main-draw match at the All England Club against a top-three opponent since Jana Cepelova's defeat of Garbine Muguruza in 2016.

Serena Williams "gave all I could" in an epic first-round Wimbledon defeat to Harmony Tan and could not assure fans she would be back on Centre Court again.

Williams is a seven-time Wimbledon champion – only Martina Navratilova has won the championships on more occasions in the Open Era – but her last championship victory came back in 2016.

There have been two final appearances since then but also now consecutive first-round exits, having retired with a hamstring tear against Aliaksandra Sasnovich in 2021; previously in her remarkable career, Williams had fallen at the final hurdle only once at any major.

Tuesday's battle with Tan was her first singles match since that injury, and Williams certainly did not lack spirit, recovering from losing the first set to dominate the second and then take control of the third, too.

Twice in the decider she led by a break, attempting to serve for the match at 5-4, only to be broken back.

Williams was then required to hold serve – and fend off a match point – to reach a tie-break, in which she led 4-0.

But Tan reeled off the next five points and eventually prevailed 7-5 1-6 7-6 (10-7) from the sort of titanic tussle Williams – now 40 and "really suffering" by the end – may not see again.

"That's a question I can't answer," she replied when asked if this was her last Wimbledon appearance. "I don't know. Who knows where I'll pop up?"

Williams "obviously" did not want this to be her lasting memory of the grass-court major. "You know me," she said. "Definitely not."

But the American added: "I gave all I could do. Maybe tomorrow I could have given more. Maybe a week ago I could have given more. But today was what I could do.

"At some point, you have to be able to be okay with that."

However, while her Wimbledon future is clearly in doubt, Williams appeared to suggest a US Open tilt later this year was highly likely.

"When you're at home, especially in New York and that being the place I first won a grand slam, it is always special," she said.

"There's always motivation to get better and play at home."

Serena Williams' hopes of a winning a record-equalling 24th grand slam title at Wimbledon are over after she was beaten by the unheralded Harmony Tan in an epic first-round match.

Williams went down 7-5 1-6 7-6 (10-7) on Centre Court in her first singles match since being forced to withdraw in the opening round of last year's tournament at the All England Club, when she suffered a hamstring injury during a contest with Aliaksandra Sasnovich.

The seven-time Wimbledon champion's much-heralded comeback proved to be an almighty battle and it was the SW19 debutant from France who came out on top late on Tuesday evening.

It took outsider Tan three hours and 11 minutes to claim a huge scalp, winning what could prove to be the great Williams' final singles match at Wimbledon.

Tan broke three times in a back-and-forth first set, with Williams unable to keep her at bay during the seventh game despite the world number 115 seeing three break points come and go before winning the fourth.

The underdog's slice in particular proved to be difficult for the 40-year-old - 16 years senior to her opponent - to counter, and the former world number one seemed to need the break afforded by the roof closure on Centre Court to regather herself.

Williams stamped her authority on the match in the second set to force a decider, breaking twice as she surged into a 5-0 lead before serving it out.

Tan refused to be beaten in the final set, twice breaking back to frustrate Williams. 

Williams was able to force a tie-break after saving a match point, and surged into a 4-0 lead - but Tan rallied once more to seize back the momentum, and celebrated a famous win after her legendary opponent netted a forehand.

Data slam: Agony for battling Williams

Williams declared that she would not have competed at Wimbledon if she did not feel she was capable of winning the tournament, but she fell at the first hurdle in a thriller.

In what was her 420th grand slam match, the veteran played her first final-set tie-break and looked destined to come out on top before Tan roared back. Victory for Tan ensured Williams remains one major crown shy of the record held by Margaret Court.

WINNERS/UNFORCED ERRORS
Tan– 29/28
Williams – 61/54

ACES/DOUBLE FAULTS
Tan – 3/3
Williams – 5/3

BREAK POINTS WON
Tan – 5/15
Williams – 6/17

Harmony Tan admitted she feared the prospect of facing a 23-time grand slam winner after defeating Serena Williams at Wimbledon on Tuesday.

It took Tan three hours and 11 minutes to claim the scalp of the seven-time Wimbledon winner, eventually winning the match 7-5 1-6 7-6 (10-7).

The SW19 debutant twice broke back in the third set, even setting up a match point which Williams saved before the eventual tie-break, and rallied from a 4-0 deficit in the tie-break to emerge victorious.

Despite the resolve shown and delight with the win on Centre Court at the All England Club, the 24-year-old revealed she nervously came into the contest.

"[Serena] is a superstar and when I was young I was watching her so many times on the TV," Tan said post-match. "For my first Wimbledon, it's wow. Just wow.

"When I saw the draw, I was really scared. Because, yeah, it's Serena Williams. She's a legend and I was like, 'Oh my God, how can I play?' If I could win one game or two games, it was really good for me.

"I would like to thank everybody today and my team and my coach Nathalie Tauziat, who also played Serena. Thank you so much for being with me."

Tan will now face 32nd seed Sara Sorribes Tormo, who defeated American qualifier Christina McHale 6-2 6-1.

Nick Kyrgios emerged victorious from an opening-round five-setter against British wildcard Paul Jubb at Wimbledon on Tuesday but controversy again followed, with the Australian blasting the "disrespect" he feels he receives.

The 27-year-old defeated Jubb 3-6 6-1 7-5 6-7 (3-7) 7-5 and hit 67 winners but after a drama-filled three hours and five minutes, his prompting of a line judge to speak to the chair umpire and demands for some fans to be removed were punctuated by spitting towards a section of the crowd upon victory.

Earlier this month, tournament organisers in Stuttgart investigated when Kyrgios claimed he was racially abused by sections of the crowd during a match.

At his post-match news conference, Kyrgios jousted with journalists on the capacity of older line judges to make accurate calls, but primarily focused on the perceived normality of on and off-court abuse.

"A lot of disrespect was being thrown today from the crowds," he said. "I’m just starting to think that it’s normal when it’s really not.

"I didn’t say anything to the crowd until they started just every time I came down to the far end, people just going. It’s just I don’t know if it’s normal or not.

"Just pure disrespect, just anything. Someone just yelled out I was s**t in the crowd today. Is that normal? No. I just don’t understand why it’s happening over and over again.

"Have you ever gone to a supermarket and just started berating someone scanning the groceries? No. So why do they do it when I’m at Wimbledon? Why is that?"

In a testy news conference, Kyrgios was himself accused of lacking respect, but he lamented over not being able to respond to the abuse he receives on the court without some kind of punishment.

The world number 40 insisted he has no regrets on spitting towards an unruly fan after his win.

"Today, as soon as I won the match, I turned to him," Kyrgios said. "I’ve been dealing with hate and negativity for a long time, so I don’t feel like I owed that person anything.

"Like, he literally came to the match to literally just, like, not even support anyone really. It was more just to, like, stir up and disrespect. That’s fine. But if I give it back to you, then that’s just how it is.

"There’s a fence there and I physically can’t do anything or say anything because I’ll get in trouble. They’re able to say anything they want."

Alize Cornet claims several players contracted COVID-19 at last month's French Open, but kept the outbreak quiet in order to avoid mass withdrawals from the tournament.

Wimbledon has already been rocked by two high-profile male players withdrawing after testing positive for the virus, with last year's runner-up Matteo Berrettini and 2014 US Open champion Marin Cilic both pulling out ahead of scheduled first-round matches on Tuesday.

Now Cornet, who equalled Ai Sugiyama's all-time record of 62 consecutive grand slam main-draw appearances in a win over Yulia Putintseva on day two, claims there were cases at Roland Garros that did not come to light.

"At Roland Garros, there was a Covid epidemic, no one talked about it. In the locker room, everyone got it and we said nothing," she told L'Equipe.

"When it comes out in the press, with big players, it will start to set fire to the lake everywhere and that worries me a little.

"[2021 French Open winner Barbora] Krejcikova withdrew saying she had Covid, and the whole locker room was sick. 

"At some point, we all might have had the flu. The thing is, we have the symptoms, itchy throat… we play and everything is fine, it's fine. 

"At Roland, I think there have been a few cases and it's a tacit agreement between us. We are not going to self-test to get into trouble! 

"Afterwards, I saw girls wearing masks, maybe because they knew and didn't want to pass it on. You also have to have a civic spirit."

Rafael Nadal was delighted to pass an "important test" against Francisco Cerundolo in his Wimbledon opener and refused to blame his foot injury after dropping the third set against the Argentine.

Nadal was made to work on Centre Court on Tuesday, requiring three hours and 33 minutes to wrap up a 6-4 6-3 3-6 6-4 win over Cerundolo.

The 22-time grand slam champion made 41 unforced errors but regained his composure to move into the second round, winning 11 consecutive points as he fought back from a break down in the fourth set to ensure he will face Ricardas Berankis.

The Spaniard says his lack of action on grass was always going to ensure it would not be plain sailing at SW19.

"I'm going to be talking about my foot today and not anymore, if it's fine for you guys," said the second seed, who is in the hunt for a calendar Grand Slam.

"We cannot be talking about my foot every single day. If not, we forget the most important thing: that is tennis.

"All credit to Fran, he started to play great and he has been a very tough opponent.

"Grass is not a surface we play very often and especially in my case, for different reasons, the last three years I didn't put a foot on the grass.

"It always takes a while – this has been my first match and every day is a test and today has been one of those important tests.

"At the beginning of the tournament, especially under the circumstances that I arrived here, the victory is the most important thing because that gives me the chance to practice tomorrow again and to have another match in two days, and I'm happy for that, without a doubt."

Nadal played his first grass-court match in three years just last week when facing Stan Wawrinka in an exhibition contest, and is participating at the All England Club for the first time since a run to the semi-finals in 2019.

Rafael Nadal was forced to work for a first-round victory over Francisco Cerundolo on Centre Court at Wimbledon.

The world number two overcame a scare to secure a 6-4 6-3 3-6 6-4 win at SW19 despite making 41 unforced errors as he eyes a first calendar Grand Slam.

Second seed Nadal, who won his first grass-court match in three years in an exhibition match against Stan Wawrinka last week, secured a break in the fourth game but Argentine Cerundolo immediately responded, finishing with a strong overhead volley after the Spaniard lost his footing after his service.

Cerundolo was certainly not fazed by his all-conquering opponent, with the pair exchanging thrilling rallies and both displaying an array of brilliant shots in a first set that Nadal won by breaking for a second time.

The 22-time major champion made a scrappy start to the second set, but a solitary break in the sixth game put him one set away from round two.

In the third, Cerundolo continued to battle as he broke Nadal back immediately to peg him back at 2-2 and edged in front at 5-3 before serving out the set to raise hopes he could pull off a huge shock.

The world number 42 continued to excel as he opened up a 3-1 lead in the fourth set, but Nadal roared back and won 11 consecutive points, breaking twice to seal his spot in the second round without being taken the distance.

He will face Ricardas Berankis in the second round at the All England Club.

Data slam: Nadal matches Navratilova record

Nadal's victory saw him equal the great Martina Navratilova's record of 306 grand slam wins in his career.

That puts him joint-fourth on the all-time list, behind only Roger Federer (369), Serena Williams (365) and Novak Djokovic (328)

WINNERS/UNFORCED ERRORS
Nadal – 23/41
Cerundolo – 30/46

ACES/DOUBLE FAULTS
Nadal – 5/3
Cerundolo – 2/2

BREAK POINTS WON
Nadal – 6/14
Cerundolo – 4/18

Feliciano Lopez equalled Roger Federer's record of 81 main-draw appearances at grand slam events in the Open era but he was beaten in the first round at Wimbledon.

The 40-year-old made his grand slam debut at the 2001 French Open and had appeared in every major since the 2002 event in Paris until he failed to progress through qualifying at Roland Garros this year.

Spaniard Lopez went down in straight sets to Botic van de Zandschulp at SW19 on Tuesday.

Ranked 214 in the world, Lopez is a three-time quarter-finalist at the All England Club, while he also reached the quarter-finals of the US Open in 2015.

Since then, the veteran has never progressed further than the third round at a grand slam.

Fabrice Santoro is third on the list behind Federer and Lopez with 70 main-draw appearances at majors, with Mikhail Youzhny and Fernando Verdasco on 69.

Nick Kyrgios hit out at a "rowdy" Wimbledon crowd after coming through a five-set thriller with Brit Paul Jubb in the first round.

The Australian was forced to come from behind to avoid a surprise exit, ultimately prevailing 3-6 6-1 7-5 6-7 (3-7) 7-5 on No.3 Court on Tuesday.

In a typically tempestuous performance, the world number 40 was frustrated by certain members of a partisan home crowd.

Kyrgios also accused a line judge of being a "snitch" as he aimed his grievances at the chair umpire, also calling for vocal spectators to be ejected.

The 27-year-old let his feelings be known after wrapping up his victory in just over three hours and paid tribute to his opponent.

"It was tough, he's a local wildcard, had nothing to lose and he played exceptional tennis at times," he stated. "He's going to be a good player for sure, I'm just happy to get through.

"The crowd was pretty rowdy. A couple of people were not shy in criticising me so that one is for you, you know who you are.

"Playing here is a lot of fun, Wimbledon over the last couple of years has been strange. We had bubbles last year and no ranking points this year, but it's special.

"It would've been a tough loss to take and I'm happy to get through. I just talk a lot on the court but off the court I'm not too bad."

Kyrgios will face either Serbia's Filip Krajinovic or the Czech Republic's Jiri Lehecka in the second round on Thursday.

Iga Swiatek is through to the second round at Wimbledon thanks to a straight-sets defeat of Jana Fett on Tuesday.

While the top seed did not have it all her own way in the second set, she ultimately had more than enough to see off Fett 6-0 6-3.

All early signs pointed to a comfortable win for Swiatek as world number 252 Fett looked nervous, committing 14 unforced errors to her opponent's four in the first set.

As such, Swiatek's first-set bagel arrived with the Pole barely breaking a sweat, but her level dropped in the second and allowed Fett a foothold.

Fett broke to love in the first game of the second set, and although Swiatek instantly hit back, the Croatian then broke again before managing to consolidate and go 3-1 up.

But she passed up five break points as Swiatek began to build her way back, and the world number one was soon a break to the good, with Fett's 23 unforced errors, which included nine double faults, proving her downfall.

A sloppy return from Fett gave Swiatek match point, and the former put her next shot straight into the net as the favourite became the first female player since Martina Hingis in 1997 to win 36 successive matches.

Data slam: Swiatek bagels again

Remarkably, Swiatek's first-set bagel was her 17th of the season. This century, only Serena Williams (25 in 2013) and Kim Clijsters (18 in 2003) have managed more in a single year.

While Fett made life a little trickier in the second, the nature of Swiatek's first-set performance almost made victory a formality and few would bet against her repeating her bagel feat in the second round.

WINNERS/UNFORCED ERRORS
Swiatek – 10/15
Fett – 7/23

ACES/DOUBLE FAULTS
Swiatek – 0/3
Fett – 1/9

BREAK POINTS WON
Swiatek – 6/10
Fett – 2/8

Matteo Berrettini has withdrawn from Wimbledon after testing positive for coronavirus.

The eighth seed was due to face Cristian Garin in the first round on Tuesday but will now take no part after suffering with mild flu-like symptoms in the past few days.

Berrettini was the runner-up at SW19 last year and, after winning at Queen's for the second straight year last week, was considered to be among the favourites to go all the way at the All England Club.

But the Italian revealed his status on social media.

He wrote: "I am heartbroken to announce that I need to withdraw from Wimbledon due to a positive COVID-19 test result. I have had flu symptoms and been isolating the last few days.

"Despite symptoms not being severe, I decided it was important to take another test this morning to protect the health and safety of my fellow competitors and everyone else involved in the tournament.

"I have no words to describe the extreme disappointed I feel. The dream is over for this year, but I will be back stronger. Thank you for the support."

Andy Murray has defended using an underam serve in his four-set Wimbledon victory over James Duckworth and believes the tactic should be seen as smart.

The two-time Wimbledon champion recovered from a set down to win 4-6 6-3 6-2 6-4 against the Australian on Monday.

Murray maintained his record of having never lost in the first round at SW19, throwing in an underarm serve to help him win a point in the third set.

The Scot insisted using the underam serve, a move often associated with Duckworth's compatriot Nick Kyrgios, is a legitimate tactic and not a sign of disrespect to an opponent.

"He changed his return position, that's why I did it," Murray explained after the match. 

"He was struggling a little bit on the first-serve return, so he stepped probably two metres further back. As soon as I saw him step further back, I threw the underarm serve in.

"I personally have no issue with players using it. I never have. Certainly more and more players have started returning from further behind the baseline now to give themselves an advantage to return.

"No one says it's disrespectful for someone to return from five or six metres behind the baseline to try to get an advantage.

"So I used it, not to be disrespectful to him, but to say, 'if you're going to step further back to return the serve to give yourself more time, then I'm going to exploit that'.

"I've never understood that [argument it is disrespectful]. It's a legitimate way of serving.

"I would never use an underarm serve if someone was standing on the baseline because I think it's a stupid idea because they're going to track it down and it's easy to get.

"If they stand four or five metres behind the baseline, then why would you not do that to try to bring them forward if they're not comfortable returning there? Tactically, it's a smart play."

Murray will face big-serving American John Isner in the second round on Wednesday, having won each of the duo's eight previous head-to-head meetings.

He was happy with how he felt physically after beating Duckworth, having returned from the abdominal injury he suffered while reaching the Stuttgart Open final earlier this month.

"The last few days when I've been serving was fine," he said. "I went to get an ultrasound scan on it on Saturday after my practice just to see how it was progressing.

"It was all clear for the first time on the scans, which is really positive. I wanted that kind of for my own peace of mind to know that the injury has healed. 

"Obviously I still need to take precautions and still do some rehab and protect it when I can, but in the match it was absolutely fine."