Nick Kyrgios acknowledged having his "own tactics" after overcoming Stefanos Tsitsipas in a dramatic, ill-tempered affair to reach Wimbledon's last 16.

Kyrgios produced an outstanding display to rally after losing the first set on No. 1 Court, eventually prevailing 6-7 (2-7) 6-4 6-3 7-6 (9-7) in an incident-filled match.

The enigmatic star set the tone with an incredible outburst after a frustrated Tsitsipas struck a ball into the crowd at the end of the second set, narrowly missing a spectator.

The Australian immediately called for his opponent to be defaulted, recalling Novak Djokovic's contentious exit from the 2020 US Open after he had accidentally hit a line judge in frustration after dropping a game.

Kyrgios could be heard calling the umpire a "disgrace", and then, after Tsitsipas had been let off with a warning, the unseeded talent asked: "Are you dumb?"

He then hit out at the umpire, yelling: "What are you talking about? Novak hit someone, it is the same, it happened right there. 

"Bring out more supervisors, I'm not done. You can bring them all out, I don't care. I'm not playing until we get to the bottom of it. 

"What happened to Novak when he hit the ball into a girl? She was injured. You can't hit a ball into the crowd and hit someone and not get defaulted."

But the drama was far from done as Tsitsipas flew into a rage of his own early in the third, having been hit with a point deduction for wildly firing another ball towards the crowd – but hitting the scoreboard instead – after Kyrgios produced a mischievous underarm serve when holding to love.

The fourth seed's frustration was evident as he then appeared to hit a couple of shots right at Kyrgios to boos from spectators, who vociferously cheered every point for the Australian.

But after producing some outstanding tennis to end the aggravated Tsitsipas' hopes of winning a first grand slam title, Kyrgios said he had no problems with the Greek, whom he played doubles with at Wimbledon in 2019.

"Honestly, it was a hell of an atmosphere, an amazing match, I honestly felt like the favourite coming in; I played him a couple of weeks ago, but I knew it was going to be a tough match," he said.

"He's a hell of a player, I had my own tactics out there – he knows how to play me, he's beaten me once, and obviously I've had success, so it was a hell of a match.

"I'm just super happy to be through, he was getting frustrated at times and it's a frustrating sport, that's for sure. I know you all think you can play, but it's very frustrating, whatever happens on the court, I love him."

Kyrgios now holds a 4-1 head-to-head lead over Tsitsipas, having also got the better of the world number five on the grass at the Halle Open earlier this month.

The 27-year-old also previously courted controversy during his run to the fourth round when he spat in the direction of a "disrespectful" fan during his first-round win over Paul Jubb.

But Kyrgios claimed his antics serve to drive interest in the sport, adding: "It's amazing, everywhere I go I seem to have full stadiums.

"The media loves to write that I'm bad for the sport, but clearly not."

Rafael Nadal was quick to apologise for appearing to upset opponent Lorenzo Sonego when he called him in for a word late in a dominant Wimbledon win.

Nadal saw off Sonego in straight sets and was in complete control for much of the third-round match, only briefly losing his composure when the Centre Court roof was closed following a lengthy plea from the 27th seed.

When the contest resumed, Nadal – who had not faced a break point until that stage – was broken to love in a game in which he took issue with a noise Sonego made as he approached the ball.

Nadal appealed to the umpire for some form of discipline immediately after the point and then took the matter into his own hands following the game.

The Spaniard called over a bemused Sonego and seemed to admonish him, leaving the Italian clearly frustrated and engaging in a prolonged discussion with the umpire.

Nadal then broke back and quickly wrapped up a 6-1 6-2 6-4 victory, before the pair met again at the net.

The 22-time major champion first attempted to explain his actions to Sonego, then to the umpire and finally to the Centre Court crowd.

After a highly respectful first answer in his on-court interview – acknowledging his "best match" of the championships so far against "a great player", "the most difficult player I've faced" in this run – Nadal discussed the confrontation.

It was suggested the encounter had been "spicy", but Nadal interrupted: "Sorry, not spicy at all. From the bottom of my heart, I didn't mean it in a negative way.

"I feel very sorry if I bothered him – I just wanted to tell him something. I did it in a nice way, and I feel now really bad if I bothered him. I'm sorry for that.

"That's it. I was talking to him, and now I'm going to talk to him, but this was not a problem, I don't think, at all."

Rafael Nadal enjoyed serene progress into round four at Wimbledon with a stylish 6-1 6-2 6-4 defeat of Lorenzo Sonego on Saturday.

For the first time at SW19 this week, there was little evidence of Nadal's recent fitness problems as he completely outclassed his Italian opponent.

And on this form, the calendar Grand Slam appears a genuine possibility for the Australian Open and French Open champion.

Indeed, it was hard not to feel sorry for Sonego – and he did appear to have the sympathy of the Centre Court crowd – as Nadal's strokes painted pretty patterns around him.

The Spaniard remarkably dropped only two points on his own serve in the first set – both to double-faults. It was a similar story in Sonego's service games, too, as he held at the first attempt but then lost the next nine in succession.

Such was Nadal's superiority a relieved Sonego lifted his arms to salute the crowd as he finally held serve in the fifth game of the second and was given a generous cheer.

That small victory scarcely slowed Nadal, who wrapped up the second on his own serve and then blasted Sonego away in the opening game of the third to break once again.

Sonego soon found a more effective way to hold up his opponent, however, appealing at length for the Centre Court roof to be closed and eventually succeeding after a brave hold and a handful of points on Nadal's serve informed officials he was capable of dragging the contest out under fading light.

So it briefly proved, as Nadal – perhaps irked by the delay – lost his composure and was broken to love after Sonego made a noise as he approached the ball; Nadal deemed the umpire an unnecessary middle man and called Sonego over for a word, clearly upsetting the Italian.

A fired-up Nadal immediately broke back, and after finally delivering a little drama, the match – and Sonego's campaign – was over.

Data Slam: Rafa ramping up

This was Sonego's first meeting with Nadal, and he might have picked a better time to face this fiercely focused great. The 22-time major champion has now won 10 third-round Wimbledon matches in a row, including the past four without dropping a set. Sonego had a hard enough time merely winning a game for much of the match.

WINNERS/UNFORCED ERRORS
Nadal – 24/17
Sonego – 19/17

ACES/DOUBLE FAULTS
Nadal – 2/4
Sonego – 2/2

BREAK POINTS WON
Nadal – 6/8
Sonego – 1/1

Venus Williams was "inspired" by sister Serena as she made a triumphant return to action in the Wimbledon mixed doubles alongside Jamie Murray.

The 42-year-old partnered Murray on Friday and rolled back the years with a 6-3 6-7 (7-3) 6-3 victory against Michael Venus and Alicja Rosolska in the first round.

That match marked Williams' first competitive action since last August's Chicago Open, with many questioning whether she would ever return to the court.

After showing some flashes of brilliance on Court One, Williams later revealed sibling Serena played a part in her decision to participate in this year's event at SW19.

Serena had herself returned from a year on the sidelines earlier in the week in the women's singles, only to go down to Harmony Tan in a three-set thriller.

"It was definitely super last minute. I was just inspired by Serena," Venus said. "It was amazing. I just was so happy to have so much help today.

"I've been trying to play with [Jamie] forever. He plays hard to get!"

All-time great Williams, who made her Wimbledon debut 25 years ago, is a five-time All England Club singles champion and has won the women's doubles on six occasions.

Williams and Murray will now face British wild cards Alicia Barnett and Jonny O'Mara in the second round, and the American says the fire is back in her belly.

"I had no plan to play but I saw the grass and I got excited," she said. "That's why I was asking [Jamie] last minute. He just had a baby, too, so I know there's a lot going on.

"I couldn't have guessed that I would be here right now, taking it at the last minute. I haven't played in a year, so you don't know what you're going to get.

"Practice is so much different from a match. It's not easy physically or mentally or anything. Just at the last it was like, 'Oh my God, wow.'

"I just not only played a match but won a match. I'm never like that kind of player. I always expect to win. 

"When I sat there, we wanted to win, but when I sat there at the end, it was real. Yeah, I felt something in my heart."

Venus Williams rolled back the years as she teamed up with Jamie Murray to add another Wimbledon victory to her collection.

The five-time All England Club singles champion and six-time women's doubles winner turned 42 years old a fortnight ago, and this year marks 25 years since her Wimbledon singles debut.

Williams had been inactive on tour since last August's Chicago Open, with many doubting she would play again, but the American great showed flashes of brilliance alongside British doubles expert Murray in a 6-3 6-7 (3-7) 6-3 victory over Michael Venus of New Zealand and Poland's Alicja Rosolska.

Some 24 years on from the season when she and Justin Gimelstob landed the Australian Open and French Open mixed doubles titles, Williams thrilled the Court One crowd with her energetic play at times, showing only a hint of rust.

The match was not initially allocated a specific court, as organisers hoped play on a show court would end early to allow for it to be added to the programme.

That panned out ideally, meaning a busy stadium crowd got to see Williams and five-time grand slam mixed doubles champion Murray pair up for a late-evening tussle, three years after their siblings Serena Williams and Andy Murray also joined forces at Wimbledon.

Novak Djokovic warned Wimbledon title pretenders his game is improving with every round as he eased past fellow Serbian Miomir Kecmanovic on Centre Court.

Defending champion Djokovic won 6-0 6-3 6-4 in one hour and 53 minutes to book a last-16 clash with Dutch wild card Tim van Rijthoven.

The 20-time grand slam winner will carry out due diligence on Wimbledon rookie Van Rijthoven, who is through to the fourth round on his debut and has reeled off eight successive wins.

Van Rijthoven won the Rosmalen Grass Court Championships in the lead-up to this fortnight, stunning world number one Daniil Medvedev in the final.

Yet on the form that saw Djokovic crush Kecmanovic's hopes, Van Rijthoven will surely stand little hope of going any deeper into the tournament.

Djokovic won 88 per cent of points when landing his first serve in court, and he has now reached the fourth round at Wimbledon on 14 occasions, a performance only beaten in men's singles by Roger Federer (18) and Jimmy Connors (16).

"I thought I started off very, very well, very strong with a lot of good intensity, good focus," Djokovic said in an on-court interview.

"Honestly, I think I've been playing better and better as the tournament progresses, so that's something you wish for as a player, that every match you play you raise a level of tennis up a notch, at least, and I think that's what is happening at the moment.

"I know I can always do better, I always expect the highest from myself, and so far, so good, and I'm looking forward to the next challenge."

Data slam: Familiarity breeds familiar outcome

The battle of these Davis Cup team-mates was always unlikely to go the way of the 25th seed, and so it proved that Kecmanovic could not cope with the animal that Centre Court brings out in Djokovic.

This was a third career meeting in tournament action for the pair, with both previous encounters having come at the Serbia Open. Kecmanovic took the opener against Djokovic before slumping to defeat when they played in Belgrade in April, but this was a rout, the 22-year-old underdog trampled.

WINNERS/UNFORCED ERRORS
Djokovic – 36/19
Kecmanovic– 13/27

ACES/DOUBLE FAULTS
Djokovic – 6/4
Kecmanovic – 1/5

BREAK POINTS WON
Djokovic - 6/12
Kecmanovic - 1/4

Another big-serving display from John Isner at Wimbledon means he now has the most ATP Tour aces on record.

Ivo Karlovic – one of only two tennis stars taller than the giant Isner – had set the benchmark with 13,728 across his career, the most since aces were first tracked in 1991.

But Isner has chipped away at that total over the course of this week at the All England Club.

The American's 54 aces in five sets against Enzo Couacaud in the first round made him the first player to pass 50 in a grand slam match since he had last done so versus Steven Johnson at the 2020 US Open.

And there were a further 36 in an epic second-round win over Andy Murray, leaving Isner just four short of matching Karlovic and five away from passing him.

Against Jannik Sinner, in Friday's third round, Isner raced past his target, tallying 12 aces in the first set alone.

It is a record Isner is likely to own for some time, with 43-year-old Karlovic absent from the ATP Tour this year and playing only six main-draw matches in 2021.

Roger Federer is third on the list, way back on 11,478.

Rafael Nadal fended off a second early test of his Wimbledon mettle as he took four sets to see off Ricardas Berankis on Thursday.

Just as in his opener against Francisco Cerundolo, Nadal dropped the third set of this match, but he regrouped, as he had two days earlier, to finish it in four.

A 6-4 6-4 4-6 6-3 victory for the 36-year-old will do the job for round two, but it was laboured at times on Centre Court from Nadal, a day after title favourite Novak Djokovic delivered a masterclass against Thanasi Kokkinakis.

Australian Open and French Open champion Nadal sealed it with an ace, his 16th consecutive win in a grand slam match, and the lack of polish at this early stage can be forgiven, given his lack of preparation on grass as he underwent treatment on his troublesome foot.

World number 106 Berankis forced breaks to lead early in the second and third sets, and although the Lithuanian was pegged back quickly enough by Nadal on the first occasion, he held his nerve to take the third set.

A rain delay came when Nadal was 3-0 clear in the fourth set, and that was only an inconvenience, Nadal wasting little time in finishing the job.

With Matteo Berrettini and Roberto Bautista Agut both pulling out of Nadal's half of the draw due to COVID-19, and Denis Shapovalov losing on Thursday to Brandon Nakashima after reaching the semi-finals last year, it is hard to see who might deny the Spanish two-time champion a place in the final, unless Nick Kyrgios or Stefanos Tsitsipas fancy the task. Italian Lorenzo Sonego will be the next to try.

Nadal said: "Every day is a challenge. That's the truth. I didn't play much on grass in the last three years. I need to improve, but I think the fourth set was much better. I think it was a good level of tennis in that set and the serve worked much better at the end of the match and I was able to play more aggressive, while at the beginning there were too many mistakes.

"It's important for me to accept things are not perfect and just keep working, be humble and accept the challenge."

Data slam: Going past Martina

Nadal took his total of singles grand slam wins to 307 with this victory, taking him one ahead of Martina Navratilova, the nine-time Wimbledon champion.

He moves up to fourth place on the all-time list for singles wins in the majors, behind only Roger Federer, who leads the way, Serena Williams and Djokovic.

Nadal of course leads the men's slam race with an unmatched 22 slams.

WINNERS/UNFORCED ERRORS
Nadal – 35/39
Berankis – 35/35

ACES/DOUBLE FAULTS
Nadal – 13/4
Berankis – 3/3

BREAK POINTS WON
Nadal – 4/16
Berankis – 2/5

Nick Kyrgios took a swipe at his critics after storming to a mesmerisingly brilliant second-round win at Wimbledon, setting up an appetising clash with Stefanos Tsitsipas.

The 27-year-old Australian was largely all business and no nonsense as he won 6-2 6-3 6-1 in one hour and 25 minutes against 26th seed Filip Krajinovic, delivering the kind of performance that underlines his potential threat at this tournament.

Yet Kyrgios had been far from his best against British player Paul Jubb in round one, eventually forcing victory by taking a tight fifth set, and his on-court behaviour came in for close scrutiny too in that match.

Against Jubb, a line judge was prompted to speak to the chair umpire about Kyrgios, whose demands for some fans to be removed were punctuated by spitting towards a section of the crowd upon victory.

Kyrgios spoke after that match of receiving "a lot of disrespect" from the crowds, while he also jousted with journalists in a news conference, before being angered by what he read afterwards.

Sinking Queen's Club runner-up Krajinovic in such a classy fashion was described by the unseeded Kyrgios as his response.

"I was pretty disappointed in my performance in the first round. Then obviously the media's disrespect and just everything, it was just kind of a reminder to put you all back in your place from the performance today," Kyrgios said. "He made finals at Queen's, top 30 in the world, seeded. It's a gentle reminder."

Kyrgios hit 50 winners and made only 10 unforced errors, saying in an on-court interview that he had displayed "great body language".

"I just wanted to remind everyone that I'm pretty good," he said, with a deliberately straight face.

"I'm just happy. I've been working hard and I've been preparing for this tournament. It's been circled on my calendar pretty much all year, and I'm so excited to be here again.

"I think it's my best chance to win a grand slam of all the four [majors], and I'll keep taking it match by match. I've got an incredibly tough draw still, and today I couldn't have played better and now I can just recover and get ready."

Awaiting Kyrgios in round three is Tsitsipas, a straight-sets winner on Thursday against another Australian, Jordan Thompson.

Kyrgios holds a 3-1 winning head-to-head advantage over Tsitsipas in their previous meetings, coming out on top when they met at Halle just a fortnight ago.

That recent match means Tsitsipas has it fresh in his mind what it might take to topple Kyrgios, and the Greek fourth seed told a news conference: "He claims to like grass and his game is good for the grass.

"I am thrilled to be facing him. I respect him a lot on the court and what he is trying to do. Even though he has been a little controversial in the past, I think he's playing good tennis.

"I'm going to concentrate on doing my own thing and pay attention to my own game from start to finish. Hopefully I can have a great competitive match against him."

Wimbledon lost another seed to a positive COVID-19 test on Thursday as former semi-finalist Roberto Bautista Agut pulled out of the tournament.

The Spaniard, who lost in four sets to Novak Djokovic in their 2019 last-four tussle, announced his withdrawal as play got under way on day four at the All England Club.

Bautista Agut wrote on Twitter: "Today I notified @Wimbledon of my withdrawal. I have tested positive for Covid-19. Fortunately, the symptoms are not very serious, but I think it is the best decision. Thank you for your support. I hope to come back soon."

Now aged 34, Bautista Agut was the 17th seed at the championships and had been due to play Colombian Daniel Elahi Galan on Court Three on Thursday afternoon.

Galan receives a walkover into the third round as a result of Bautista Agut's announcement.

The loss of Bautista Agut follows the crushing blow of last year's runner-up Matteo Berrettini having to abandon his Wimbledon mission for the same reason.

Eighth seed Berrettini recently won at Queen's Club for the second straight year and was widely considered a credible challenger to Novak Djokovic and Rafael Nadal, but the Italian pulled out ahead of his first-round match on Tuesday.

Croatian Marin Cilic, a former US Open champion and Wimbledon runner-up, also withdrew from the tournament before his opening match after a recent positive test.

Andy Murray's Wimbledon journey has ended in the second round despite a spirited fightback against John Isner in a four-set thriller.

The three-time grand slam champion - two of which have come at SW19 - will not add a fourth to his collection after he was downed by the big-serving American 6-4 7-6 (7-4) 6-7 (3-7) 6-4 on Centre Court on Wednesday.

Yet the 35-year-old did not go down quietly against the number 20 seed, forcing a tie-break in the third set to prevent a straight-sets win for his opponent before ultimately fading in the fourth.

For Murray, it marks the earliest exit of his Wimbledon career, having previously always reached the third round at senior level.

Despite never dropping more than two games behind Isner across the contest, the Scot was crucially never able to break serve. 

Isner sent down a stunning 36 aces, including three in succession in the final game of the match to put him on the brink of victory, before a neat backhand over the net sealed the deal.

Novak Djokovic says he will support his former coach Boris Becker and the German's family in any way he can during his time in prison.

Becker was jailed for two-and-half years at the end of April after being found guilty of concealing £2.5million of assets to avoid paying money he owed after his bankruptcy.

The six-time grand slam champion's girlfriend, Lilian de Carvalho Monteiro, and his son, Noah, were in Djokovic's box on Centre Court for his first and second-round matches at Wimbledon.

Djokovic had Becker in his corner for three years as his coach until the end of 2016.

The legendary Serbian has not been in direct contact with Becker, but vowed after outclassing Thanasi Kokkinakis at SW19 on Wednesday that he will always be there for the 54-year-old and his relatives.

He said during a media conference at the All England Club: "I haven't been communicating directly with him, but I've been communicating to him through them [Becker's family] and I was really glad to have hosted his girlfriend and his son Noah for my first round and now today second-round match.

"Noah and his younger brother, Elias, are going to visit Boris I think in the next few days for the first time since he went to prison and I've been just trying to give support to people around him, his closest people, his family members because I consider Boris as a family member. He's someone that I greatly appreciate, respect and care about.

"We've been through a lot together and during those three years of collaboration and our relationship dates back even before that. After we finished our professional relationship we always stayed close; him with my team, my agents and my family.

"It breaks my heart to see what is happening to him, so this is a little gesture of friendship to invite them. He knows and they now they can always count on me for whatever support or help I can provide."

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

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.