MATTHEW LAMBERT AT WIMBLEDON: There has been precious little bad blood spilled on the lawns of the All England Club but that could change when Rafael Nadal takes on Nick Kyrgios.

There are some superb match-ups on the fourth day at Wimbledon. British supporters will be cheering on Cameron Norrie on Centre Court against Kei Nishikori.

Australian tennis star Ash Barty's second round match against Belgium's Alison van Uytvanck will take place on court two instead of centre court at Wimbledon on Thursday.

Despite the 41 places which separate them in the world rankings, this feels like anybody's game in their first meeting since February's fiery clash in Acapulco lit the touch paper for a war of words.

Kyrgios was seen socialising with friends and chatting to girls at Wimbledon's Dog & Fox pub on Wednesday evening, according to a sports commentator on Twitter.

The 24-year-old was spotted at the Dog & Fox Pub in Wimbledon last night until around 11pm just hours ahead of today's game.

Three minutes into the conference, the journalist said 'Nick you played a great match'. Kyrgios turned to face her and his eyes lit up. 'You were at the pub last night,' he said,

It's the second night on the bounce Kyrgios has painted the town red and the controversial Australian didn't appear to be fazed by his Wimbledon exit just hours later.

Keen observers noticed Bouchard - who was eliminated in the first round of the ladies singles - chose to side with Kyrgios during his second round grudge match against Rafael Nadal.

Nick Kyrgios confessed he was aiming to hit Rafael Nadal with the ball during a rally in their bad-tempered second-round Wimbledon encounter, which the Spaniard won in four sets.

Nick Kyrgios crashed out of both the singles and mixed doubles competitions at Wimbledon in the last 24 hours.

The debate about whether Nick Kyrgios is good or bad for tennis will linger at Wimbledon but the man himself will not following defeat in the mixed doubles last night.

After Friday's loss with Krawczyk, Kyrgios suggested he was planning a much quieter evening, but his partner wasn't buying it. She replied: ''Are you? Full of s***. Full of s***.'

The pair lost their mixed doubles game on Friday to opponents Marcus Daniell and Jennifer Brady but Kyrgios seemed more interested in his parnter Krawcyzk, 25,  during the press conference.

I am in the camp that wants to see Nick Kyrgios do well and fulfil his enormous potential - I love so much of what he brings to tennis. But to me, the Australian is at a crossroads.

EXCLUSIVE: Yesterday, Kyrgios lost in the mixed doubles alongside partner Desirae Krawczyk before he flirted with her in the press conference, saying, 'We've got a club set up, it is going to be outrageous'.

First he dispatched a rank outsider. Then one of the biggest rebels in tennis. And yesterday Rafael Nadal came up against the eternal entertainer that is Jo-Wilfried Tsonga and again prevailed.

Wimbledon players have been fined £95,000 in 2019 with six days remaining in the tournament - eclipsing the previous record of £72,200 set during the whole fortnight in 2017.

Sportsmail's KIERAN GILL brings you the inside stories from Wimbledon ahead of the second Wednesday at this year's Championships, where Nishikori is said to be under the weather.

Matthew Syed, who represented Great Britain in table tennis and now works as a journalist, claimed Kyrgios, 24, puts on a carefree public persona to excuse his own shortcomings

Just days after crashing out of Wimbledon in the second round, the 24-year-old posted a picture on his Instagram of himself growing up in Canberra. The tennis star played basketball for the ACT.

The bad boy of tennis can add his latest row to the showreel after he smashed his racket in a strop before refusing to shake the hand of the chair umpire Fergus Murphy.

This is the moment that tennis-bad-boy Nick Kyrgios was captured pegging a water bottle into the umpire's chair. 

The crowd was blown away after Kyrgios, 24, managed to beat his opponent Norbert Gombos, 28, on Saturday after a back and forth rally that ended with Kyrgios diving across the court.

Usually when Nick Kyrgios is creating headlines it can be for controversial reasons. But tennis's 'bad boy' was at the centre of a feel-good moment during his straight sets victory over Norbert Gombas.

The Australian notched up his fourth win against a top-10 player this year as he downed his Greek opponent 6-4 3-6 7-6 (7) in two hours and eight minutes.

The Australian was at his exuberant best in a semi-final win over Stefanos Tsitsipas on Saturday and followed that up with a tight 7-6 (8-6), 7-6 (7-4) triumph against third seed Medvedev.

Australian tennis bad boy Nick Kyrgios has shut down a spectator who attempted to heckle him during a recent training session.

The out-of-sorts Australian tennis star was beaten in the first round of the Canadian Open by Briton Kyle Edmund who closed out a 6-3 6-4 victory in 67 minutes.

The out-of-sorts Australian seemed to make the most of his time in Montreal by getting cosy with the Canadian tennis star's twin sister Beatrice, days after his most bizarre on-court meltdown yet.

The Australian tennis star could face suspension after calling an umpire a 'f***ing tool' and appearing to spit in his direction at the Cincinnati Masters on Wednesday.

Nick Kyrgios has been fined $166,714 for his latest outburst which saw him smash rackets, call the chair umpire a 'f**king tool' and refuse to get ready to return serve at the Cincinnati Masters.

Tennis veteran Sam Groth has claimed Nick Kyrgios is too big a 'commodity' to lose as the 24-year-old faces suspension of his outburst at the Cincinnati Masters.

He's the controversial Australian tennis star who is rarely out of the headlines.

Nick Kyrgios has taken issue with comments made by tennis greats about his on-court antics and the state of his mental health ahead of his first round US Open match.

Kyrgios' first-round win against American Steve Johnson was his first since copping a record $US113,000 ($A167,000) fine for a spectacular meltdown during a tournament in Cincinnati.

Nick Kyrgios got his US Open campaign off to a winning start with a straight sets victory over Steve Johnson, but irked his opponent after responding to calls from the crowd.

 Nick Kyrgios faces a suspension from tennis after labelling the ATP 'corrupt'. Kyrgios made the comments after his first-round US Open win over American Steve Johnson.

MIKE DICKSON IN NEW YORK: Tennis's authorities are coming under pressure from inside the locker room to take firmer action against Nick Kyrgios after his latest outbursts at the US Open.

Nick Kygios shrugged off yet more off-court controversy to ease into the third-round of the US Open with a straight sets win over Antoine Hoang. The Australian won 6-4, 6-2, 6-4.

Nick Kyrgios has brushed off another row with tennis officials to give Australia three players in the last 32 of the US Open men's singles.

Nick Kyrgios delivered the unexpected 'tweener' lob at the heated doubles round in front of gasping spectators at Arthur Ashe Stadium on Saturday.

Nick Kyrgios claimed video games were ruining him and demanded a linesman be removed during a typically dramatic exit from the US Open in New York.

Rod Laver says Australian tennis player Nick Kyrgios needs to stop trying to be an entertainer and take a discipline pill in order to maximise his undoubted potential.

The Australian bad-boy dated Croatian-Australian tennis ace Ajla Tomljanović for around two years until 2017 - but she appears to have moved on with a rival.

Former Australian Davis Cup captain Pat Rafter says he can't understand why Nick Kyrgios hasn't already been suspended following a series of ugly tantrums this year.

MIKE DICKSON IN GENEVA: Alex Zverev made up for the loss of an injured Rafael Nadal when he carried Team Europe to victory in the Laver Cup on Sunday night for the third time in its three editions.

Nick Kyrgios has been given a suspended 16-week ban from the ATP Tour following the conclusion of an investigation into his explosive second-round loss in Cincinatti.

The 24-year-old Australian was given a six-month probation period and faces a lengthy suspension if he doesn't promise to be on his best behaviour for six months.

Nick Kyrgios' six-month probationary period will start on Monday after the Australian opted not to appeal the punishment handed down by the ATP last week.