Nick Kyrgios was the recipient of lenient treatment from the chair umpire during his feisty Wimbledon clash with Stefanos Tsitsipas, so says John Lloyd.

Kyrgios has caused a stir at The All England Club over the past week, making headlines not only for his high-quality tennis, but his on-court behaviour.

The outspoken Australian is no stranger to arguing with umpires and line judges but has been particularly vitriolic at times at Wimbledon.

On Saturday he clashed with Tsitsipas, who subsequently accused the 27-year-old of being a "bully". Both players were fined for their conduct.

Now into the quarter-finals after beating Brandon Nakashima on Monday, Kyrgios has matched his best run at a grand slam, reaching the last eight at a major for the first time since 2015.

But former British number one Lloyd believes that stern calls from umpires are the way to keep a lid on Kyrgios' emotions.

Lloyd told Stats Perform: "I love watching Kyrgios because he is in some ways, it's almost like a [Roger] Federer, not in the personality, but the way he can conjure up shots that no one else can get.

"And plus, you never know what he's going to do with the drop, the underarm serves and various other things. That makes him a fun guy to watch. The game is looking for characters and I think we always say that [about Kyrgios].

"I have no problem with some of the stuff he does. But when it gets to the stage, which it was on Saturday, when it becomes a circus where it's all about him, there has to be a line there. 

"I think what happened was the umpire messed up. Something I can't understand is when you're umpiring Nick Kyrgios in a match as big as this, you have to put the best guy out there that won't stand for any stuff. In other words, you've got to set the standard from the beginning.

"[A line judge] came up to the umpire after the second or third game in the middle of the rally to say basically that he had sworn and the umpire sort of looked and then hesitated, didn't give him a warning. It was almost like he was thinking, 'I'll let this one slip.'

"Well, with certain players, you could let it slip. But with Nick, he should have come right down on him. So he should put out the setting to say this is not going to happen and he didn't do that, and after that, Nick just got all over him."

Lloyd also feels that world number five Tsitsipas, who was defeated 6-7 (2-7) 6-4 6-3 7-6 (9-7) allowed Kyrgios to get under his skin.

"Tsitsipas was the sideshow. He's just trying to play tennis, and he's not being allowed to because of the constant barrage of talking going on," Lloyd added.

"He's rushing him the whole time. That's Tsitsipas' fault in some ways. He could have slowed it down. He was trying to be professional.

"When he lost the second set, he exploded. Hit the ball into the crowd, it did hit someone off a rebound. He could have got defaulted there.

"But for me, it was Kyrgios that goaded him for the first couple of sets and he was allowed to basically control the way the match was going, and I think that's got to be stopped. It's okay to have a bit of entertainment here and there, but not to the stage where your opponent can't play properly because of all the stuff that's going on."

Kyrgios will face Cristian Garin for a place in the semi-finals. It will be the first quarter-final between two unseeded players at Wimbledon since Arnaud Clement took on Rainer Schuttler in 2008.

Nick Kyrgios extended a perfect record in five-set Wimbledon encounters as he defeated Brandon Nakashima to make the last eight at SW19.

The outspoken Kyrgios has made plenty of headlines so far at Wimbledon, and had to battle hard against 20-year-old American Nakashima on Centre Court on Monday, two days after his ill-tempered clash with Stefanos Tsitsipas.

That win over the world number five took four sets, but Kyrgios needed all five this time around, eventually prevailing 4-6 6-4 7-6 (7-2) 3-6 6-2.

The victory sent Kyrgios into the last eight at Wimbledon for the second time, after he reached the same stage by beating Rafael Nadal in 2014, while it is only the third time in the Australian's career that he has progressed to a grand slam quarter-final, having last done so in Melbourne in 2015.

It also kept up Kyrgios' 100 per cent record of winning Wimbledon matches that have gone to five sets, with the 27-year-old now 6-0 in that regard, with two of those victories coming at this year's edition of the major.

"First I want to say hell of an effort from Brandon, he's 20 years old and he's going to do some special things that's for sure," said Kyrgios, who needed medical attention on a shoulder injury during the tie, in his on-court interview.

"[It was] nowhere near my best performance, but I fought through, the crowd were amazing.

"I have played a lot of tennis in the last month and a half. His level didn't drop. My five-set level is pretty good and I've been here before, done it before and that is what I was thinking about."

The only disappointment from Kyrgios' point of view was missing out on an all-Australian quarter-final against Alex de Minaur, who squandered a two-set lead as he went down 2-6 5-7 7-6 (7-3) 6-4 7-6 (10-6) to Cristian Garin, who became the first Chilean player to reach the last eight of a grand slam since Fernando Gonzalez at the US Open in 2009.

Any nerves are nothing that a stiff drink will not fix for Kyrgios, however.

"I was really excited to play De Minaur to be honest, he's been flying the Aussie flag for so long and he was two sets up when I came on court," he said.

"I need a large glass of wine tonight for sure.

"I stepped out here amongst the greatest of all time and I beat Nadal [in 2014]. All these experiences that I've had got me over the line today."

Nick Kyrgios and Stefanos Tsitsipas have been handed fines for their actions during a fiery Wimbledon clash where the former was accused of being a "bully".

The pair played out an ill-tempered third round encounter on Court One that saw the Australian come from behind to defeat the fourth seed in a 6-7 (2-7) 6-4 6-3 7-6 (9-7) win.

The pair traded furious remarks afterwards, with the Greek accusing his rival of having an "evil side", while Kyrgios called his opponent "soft" and suggested he is disliked by his fellow players.

Now, the duo have been handed financial penalties, with Kyrgios charged $4,000 (£3,300) for an audible obscenity and Tsitsipas slapped with a $10,000 (£8,250) fine for unsportsmanlike conduct.

It is the second fine of the tournament for Kyrgios, who was sanctioned for an incident in his opening clash with Britain's Paul Jubb.

The Australian - who experienced grand-slam glory on home soil in the men's doubles earlier this year - will now face Brandon Nakashima in a last-16 tie.

Nick Kyrgios has dragged tennis into the gutter with his Wimbledon antics, according to Pat Cash.

According to Kyrgios' compatriot Cash, the Australian has taken the sport "to the lowest level" with his on-court behaviour in the first week of the tournament.

The 27-year-old beat fourth seed Stefanos Tsitsipas 6-7 (2-7) 6-4 6-3 7-6 (9-7) in an enthralling round-three tie on Saturday.

Tsitsipas accused his opponent of "constant bullying" after the ill-tempered clash, which was followed by a riposte as Kyrgios said the beaten Greek was "soft" and denied being a bully.

Kyrgios frustrated Tsitsipas by calling for him to be defaulted after the world number five narrowly missed a spectator when firing a ball into the crowd at the end of the second set.

The umpire was then labelled a "disgrace" during an extraordinary Kyrgios outburst, and his behaviour seemed to get under the skin of Tsitsipas, who was deducted a point for sending another ball towards the spectators before appearing to hit a couple of shots directly at his opponent's body.

Kyrgios has been a repeated critic of umpires and line judges, often appearing to show contempt to authority figures, and Cash – Wimbledon champion in 1987 – has had enough, calling out his countryman's conduct.

Speaking on BBC Radio 5 Live, Cash said: "It was absolute mayhem. He's brought tennis to the lowest level I can see, as far as gamesmanship, cheating, manipulation, abuse, aggressive behaviour to umpires, to linesmen.

"He was lucky to even get through the first set, he should have been defaulted in about the first set. Something's got to be done about it. It's an absolute circus.

"Is it entertaining? Yeah, possibly. But it's gone to its absolute limit now."

Asked how he considered Kyrgios to be cheating, Cash said: "The gamesmanship, the stuff that he was doing. The abuse that he was giving Tsitsipas.

"Tsitsipas would make a line call and he'd go up there and he'd start complaining, he was in his face. That's a part of gamesmanship. That's the sort of stuff that he does and I think there's a limit."

Cash's criticism comes ahead of Kyrgios facing American Brandon Nakashima on Monday. That match has been given the prize billing of first up on Centre Court, despite neither man being seeded.

The tennis authorities may not approve of some of the behaviour, but they know there is a huge public fascination with the highly talented Kyrgios, which is why that match has such a prestigious slot. He is 40th in the ATP rankings, and 20-year-old Nakashima is 56th on the list.

Kyrgios is just one win away from matching his best run at Wimbledon, having reached the quarter-finals in 2014 with a win over Rafael Nadal before being beaten by Milos Raonic.

Yet Cash indicated the loudmouthed showman should face sanctions for his actions.

"I have no problem with a bit of gamesmanship, but when it gets to that level I think it's out of control, and it was," Cash said.

"The umpire had lost control, the ball kids were running across the court as Kyrgios was serving. He didn't slow down for any of that stuff.

"Tsitsipas got sucked right in, so it was entertaining, and it was fascinating, but for me it's gone too far now."

Nick Kyrgios labelled Stefanos Tsitsipas "soft" and defended his on-court antics after the Greek called him a "bully" in the aftermath of their ill-tempered Wimbledon clash.

Kyrgios recovered from one set down to post an impressive 6-7 (2-7) 6-4 6-3 7-6 (9-7) win over the fourth seed, setting up a last-16 tie with Brandon Nakashima with a scintillating performance on No. 1 Court.

But the contest was not without controversy, with Kyrgios frustrating Tsitsipas by calling for him to be defaulted after the Greek narrowly missed a spectator when firing a ball into the crowd at the end of the second set.

The Australian then labelled the umpire a "disgrace" during an extraordinary outburst, and his antics seemed to get under the skin of Tsitsipas, who was deducted a point for sending another ball towards the spectators before appearing to hit a couple of shots directly at Kyrgios.

While Kyrgios praised his opponent – with whom he played doubles at Wimbledon three years ago, as "a hell of a player" in his post-match interview, neither player was in the mood for niceties in their respective news conferences.

First up was Tsitsipas, who accused Kyrgios of "constant bullying".

"That's what he does," the world number five said of his rival. "He bullies the opponents. He was probably a bully at school himself.

"I don't like bullies. I don't like people that put other people down.

"He has some good traits in his character, as well. But he also has a very evil side to him, which, if it's exposed, it can really do a lot of harm and bad to the people around him."

Kyrgios, who has now claimed four wins in five career meetings with Tsitsipas, responded to that criticism shortly thereafter, alleging the Greek was not popular in the locker room and saying his inability to handle such matches would hold him back.

"He's that soft, to come in here and say I bullied him? That's just soft," Kyrgios said. 

"We're not cut from the same cloth. If he's affected by that today, then that’s what's holding him back, because someone can just do that and that's going to throw him off his game like that. I just think it's soft.

"I don't know what to say. I'm not sure how I bullied him.

"He was the one hitting balls at me, he was the one that hit a spectator, he was the one that smacked it out of the stadium.

"I didn't do anything. I was actually like… apart from me just going back and forth to the umpire for a bit, I did nothing towards Stefanos today that was disrespectful, I don't think. I was not drilling him with balls.

"I feel great, the circus was all him today. I think if he's making that match about me, he's got some serious issues, I'm good in the locker room, I've got many friends, I'm actually one of the most liked [players]. I'm set.

"He's not liked, let's just put that there. I'm good, I feel good."

Kyrgios is just one win away from matching his best run at Wimbledon, having reached the quarter-finals in 2014 with a win over Rafael Nadal before being beaten by Milos Raonic.

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."

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."

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."

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.

Nick Kyrgios is convinced he can make Wimbledon stars "look pretty ordinary" and insists he will embrace being a crowd "villain" when he starts against British wildcard Paul Jubb.

The Australian world number 45 has looked sharp on grass already this month, reaching semi-finals in Stuttgart and Halle, where his runs were ended by Andy Murray and Hubert Hurkacz respectively.

Kyrgios, who could play Queen's Club Championship runner-up Filip Krajinovic in round two at Wimbledon, expects to have only a small portion of support when he begins against 22-year-old Jubb.

That match is set for Tuesday, and Kyrgios believes he is playing well enough to win through comfortably, ahead of the more obvious tests of his game that lie ahead.

Renowned as an immensely talented firebrand, the 27-year-old would rather be remembered as a grand slam champion, but there are some major obstacles blocking his path to that objective.

"I've played top-10 players in the world this year and made them look pretty ordinary," he said.

That claim is not without merit, given Kyrgios beat Stefanos Tsitsipas in Halle, Andrey Rublev in Miami, and Casper Ruud in Indian Wells.

He is picking and choosing when he competes to allow himself plenty of time to spend with friends and family, and is determined to find a successful work-life balance.

"I know where my game's at," Kyrgios added. "I know if I'm confident and playing well, I'm able to light it up whenever I want. I've got to pick and choose, so when I play, I've got to make sure I'm having some good results and putting in my best effort.

"If I figured that out earlier in my career, maybe the narrative may have been different, but I'm proud to be where I am at the moment.

"I know if I'm serving well and playing well, I can beat anyone. I've beaten pretty much everyone in the draw before."

Kyrgios lost to Russian Daniil Medvedev in the second round of the Australian Open in January and is disappointed the world number one has been banned, along with all Russian and Belarusian players, from Wimbledon.

That position has been taken because of the Russian-led invasion of Ukraine, but Kyrgios said: "My honest opinion is I don't think it was a good idea to ban the Russian players.

"Medvedev is the best we have in our sport right now. I think whenever we have cameras on and a lot of people tuning in, you want a lot of our players to be on showcase for the sport to grow.

"I'm disappointed that they're not here. It's weird not seeing Medvedev here, because we all know what he's capable of."

Medvedev will be far away from SW19 when Kyrgios begins his campaign against Judd.

The 'bad boy' image has stuck to Kyrgios, and he has often not helped his cause, with a string of incidents of volatile behaviour in his past. He accepts the crowd will be siding with the underdog on Tuesday.

"I'm used to wearing that black hat, the villain-type role, and I've just got to embrace it," he continued.

"I'm going to go out there and just play my game. If you look at the results of the last couple of weeks, if I just stick to my guns, the results say I should win pretty easy. 

"But I know that's not going to be the case, so I've got to be focused."

Novak Djokovic and Rafael Nadal avoided the looming threat of Andy Murray and Nick Kyrgios in Friday's Wimbledon draw.

With both Murray and Kyrgios unseeded, they could have been drawn to face any of the top seeds, but it did not work out that way, most likely to everyone's satisfaction.

Instead, top seed and tournament favourite Djokovic drew South Korean Kwon Soon-woo, while Nadal was pitted with 23-year-old Argentinian Francisco Cerundolo.

Djokovic will be bidding for a seventh Wimbledon title and a fourth in succession following triumphs in 2018, 2019 and 2021, after the cancellation of the 2020 championships.

For second seed Nadal, who has won the Australian Open and French Open already this year to reach a record 22 men's grand slam singles titles, there is the possibility of a rare calendar Grand Slam.

He must carry off the title at Wimbledon for the first time since 2010 to stay in the hunt for that elusive clean sweep, last achieved in men's singles in 1969 by Rod Laver.

Murray, who like Nadal is a two-time former Wimbledon champion, was paired with James Duckworth of Australia and could face big-serving American John Isner in round two. Murray has been troubled by an abdominal strain in the past fortnight, and it remains to be seen whether the 35-year-old is in shape to be a contender.

Duckworth's countryman Kyrgios has been in fine form of late, reaching consecutive semi-finals in Houston, Stuttgart and Halle before he too suffered an abdominal twinge this week and withdrew from the Mallorca Championships. Kyrgios will start against Britain's Paul Jubb at Wimbledon.

A notable first-round clash saw three-time major winner Stan Wawrinka, in the draw on a wildcard, paired with Italian 10th seed Sinner, while Matteo Berrettini, runner-up to Djokovic last year, will play Chile's Cristian Garin.

Powerful Italian Berrettini, who has won the Stuttgart and Queen's Club titles on grass this year, features on Nadal's side of the draw, while in the top half Djokovic has the likes of Carlos Alcaraz and Hubert Hurkacz for company.

Alcaraz, the 19-year-old Spanish revelation who has won four titles already this year, was drawn to face the experienced German Jan-Lennard Struff in round one.

Men's third seed Casper Ruud has never won a singles match at Wimbledon, losing in the first round on his previous two appearances. The recent French Open runner-up will look to get off the mark on the SW19 grass against 34-year-old Spaniard Albert Ramos-Vinolas.

Nick Kyrgios has lamented the ATP Tour trialling off-court coaching, warning tennis will lose one of the "unique traits that no other sport had".

The ATP announced on Tuesday that off-court coaching will be tested in the second half of the season, with coaching permitted by a designated person in qualifying and main draw matches.

Verbal coaching will be permitted when players are at the same side of the court as their coach, with non-verbal instructions – for example hand signals – allowed at any time.

Patrick Mouratoglou coached former world number one Serena Williams and now works with Simona Halep, and was quick to welcome the introduction.

Mouratoglou suggested the coaching methods have been used at "almost every match for decades".

While Mouratoglou was a vocal supporter of the ATP decision, Kyrgios – who pulled out of the Mallorca Championships with injury – hit back and slammed the proposed changes.

"Completely disagree. Loses one of the only unique traits that no other sport had," Kyrgios responded to Mouratoglou's post on Twitter.

"The player had to figure out things on his own. That was the beauty of it. What happens if a high-profile player versus a low-ranked player who doesn't have or [cannot] afford a coach?"

The trial commences on July 11 and will be evaluated at the end of the 2022 season, to assess the potential inclusion of off-court coaching in subsequent seasons.

Daniil Medvedev eventually mastered the windy conditions as he came from behind to keep his Mallorca Championships defence alive, but Jannik Sinner and Diego Schwartzman crashed out in Eastbourne. 

World number one Medvedev fought back from a set down to defeat Aslan Karatsev 3-6 6-4 6-2 and advance to a quarter-final against fifth seed Roberto Bautista Agut, who was granted a walkover after Nick Kyrgios pulled out with an abdominal issue. 

The Russian got just 48 per cent of his first serves in during a blustery opening set before improving to 68 per cent in the second and controlling the decider as Karatsev struggled with injury. 

"It was tough to play [in] rhythm. It felt like many points were just whoever managed to put the ball in the court was going to win the point," Medvedev said of the tricky conditions. 

"It was not easy but I'm happy to win because that's the most important [thing]. 

"Last year was amazing. I played great tennis. Hopefully I can do the same this year. I like it here in Mallorca, so hopefully I can stay as long as possible in the tournament." 

Alongside Medvedev and Bautista Agut, Stefanos Tsitsipas is the only other seed left in the draw after he overcame Ilya Ivashka 6-4 6-4. 

Denis Shapovalov was a 6-4 6-1 loser against Benjamin Bonzi, Pablo Carreno Busta went down 6-3 6-4 to Antoine Bellier and Sebastian Baez's meeting with Daniel Altmaier ended in a 6-2 2-6 6-4 defeat for the Argentine. 

At the Eastbourne International, second seed Sinner suffered a 6-3 3-6 6-3 loss to Tommy Paul as he made his return from a knee injury sustained at the French Open.

World number 13 Sinner remains without a grass-court win in his ATP Tour career, while Paul will next face defending champion Alex de Minaur, who overcame Lorenzo Sonego 7-6 (7-3) 6-2 in a repeat of last year's final. 

Jack Draper defeated fourth seed Diego Schwartzman 7-5 7-6 (7-3) to advance to the quarter-finals and Cameron Norrie cruised past Brandon Nakashima in straight sets.

There were also wins for Maxime Cressy, Alexander Bublik and Taylor Fritz. 

Ryan Peniston stunned French Open quarter-finalist Holger Rune at the Eastbourne International to continue his strong form on the grass.

Peniston beat world number five Casper Ruud as he reached the quarter-finals at the Queen's Club Championships last week, and followed that up by recovering from a set down against Rune to reach Eastbourne's last 16 in impressive fashion.

After wrapping up a 4-6 7-6 (7-5) 6-1 win, the 26-year-old told the home crowd: "I'm very happy with that. A tough start but I managed to fight, thanks to you guys.

"Since Queen's it has been madness. A couple of weeks ago was a lot different and things have changed, but I'm loving it."

Rune, who was twice two points from victory in an enthralling contest, was jeered by spectators after hitting a ball out of court and kicking his towel bin after being broken in the third set.

Peniston will face Pedro Martinez in the next round after he benefited from fellow Spaniard Alejandro Davidovich Fokina being forced to retire at one set apiece, while Ugo Humbert fell to a 6-7 (2-7) 6-3 6-4 reverse against Brazil's Thiago Monteiro.

Lorenzo Sonego posted a 4-6 7-6 (7-5) 7-6 (7-1) win over James Duckworth, while Tommy Paul recovered from a set down to beat Francisco Cerundolo and home favourite Dan Evans overcame Adrian Mannarino 6-4 6-3.

The seeds in action at the Mallorca Open endured mixed fortunes as Sebastian Baez cruised past Jordan Thompson in straight sets, but Botic van de Zandschulp was beaten by Marcos Giron.

The Dutchman succumbed to a 6-7 (6-8) 6-4 7-6 (7-2) defeat, while Germany's Daniel Altmaier beat Dusan Lajovic 7-5 7-6 (7-2).

Nick Kyrgios set up an enticing last-16 meeting with fifth seed Roberto Bautista Agut by knocking out Serbia's Laslo Djere in a marathon three-set contest, recovering to win 5-7 7-6 (7-1) 7-6 (7-1).

Nick Kyrgios has become the first star to sign up to Naomi Osaka's sports agency. 

Australian Kyrgios was described by four-time grand slam winner Osaka as possessing an "unmatched style", while her business partner Stuart Duguid said the controversial ATP Tour player was "absolutely the icon" for young tennis fans. 

Osaka and Duguid, her long-time agent, announced the Evolve agency in May as both left IMG. 

Kyrgios, the extravagantly gifted world number 45, has won six career titles on the ATP Tour and has a world ranking high of number 13, with many considering him an unfulfilled talent. 

The 27-year-old won the Australian Open doubles title alongside countryman Thanasi Kokkinakis in January, and in singles he has reached consecutive semi-finals in his past three tournaments in Houston, Stuttgart and Halle. 

Osaka told Boardroom.TV that Kyrgios "embodies the types of athletes we want to work with". 

"He's got an unmatched style, passion and personality that is unlike any other in the sport," Osaka added. 

Duguid said: "Nick is the most talented and entertaining tennis player on the tour, bar none. His energy is infectious. And love or hate him, you definitely can't keep your eyes off him. For Gen Z and younger, he is absolutely the icon." 

While Kyrgios is planning to play at Wimbledon next week, Osaka will be absent, with the former world number one troubled by an Achilles injury.