Nick Kyrgios has often walked a tightrope when it comes to etiquette on a tennis court, but the surprise Australian Open doubles finalist insists: "I'm not creating a circus."

Playing with Thanasi Kokkinakis, Kyrgios has led an Australian charge to the men's doubles final, with compatriots Matthew Ebden and Max Purcell awaiting them in the title match.

It will be an all-Australian final in the men's doubles for the first time since 1980, guaranteeing home champions.

Showman Kyrgios mounted a defence of his brand of tennis after he and Kokkinakis downed Horacio Zeballos and Marcel Granollers 7-6 (7-4) 6-4 on Rod Laver Arena.

New Zealander Michael Venus had expressed annoyance at the behaviour of Kyrgios this week, after he and Tim Putz lost out in the quarter-finals to the home pair.

Venus said that match, which Kyrgios and Kokkinakis won in a deciding set, "felt like a circus", while taking direct aim at the conduct of Kyrgios by saying his maturity level was that of a 10-year-old.

Kyrgios, 26, says he can mix top-level tennis with entertainment, rebutting the "circus" accusation.

"I think I played pretty good tennis in the past. I've beaten pretty much every player that's picked up a racket," he told a news conference.

"I've obviously had to play a certain level of tennis. It's not like I'm going out there putting on a clown suit and creating a circus.

"I have also played, won titles, won big titles, I have played the traditional way. I think now I'm able to channel a different fan base. I think it's only positive in my opinion."

At the 2015 US Open, American tennis great John McEnroe questioned the eccentric shot selection of Kyrgios in a first-round loss to Andy Murray, telling ESPN: "You don’t want to be remembered as a clown. You want to be remembered as a player. He thinks he's a vaudeville entertainer."

Kokkinakis firmly backed his 'Special Ks' doubles partner on Thursday, saying critics should look at the attention Kyrgios brings to the sport from beyond its usual viewership.

"I think people have just got to be open," Kokkinakis said. "You're always trying to develop a sport and grow a sport.

"Of course, you've got to keep it within the boundaries. If people are so narrow-minded they can't see this is bringing a lot of fans and a lot of eyes, I think that is their problem honestly."

Kyrgios then addressed Kokkinakis, saying: "I think the quality of tennis was pretty good today, don't you think?"

Kokkinakis agreed. "That is what it is about. It's about having a good product on court that people actually come and enjoy. You can't please everyone," he said.

Nick Kyrgios and Thanasi Kokkinakis' dream run in the Australian Open men's doubles continued, reaching the final on Thursday.

Kyrgios and Kokkinakis stunned third seeds Horacio Zeballos and Marcel Granollers 7-6 (7-4) 6-4 in their semi-final on Rod Laver Arena.

The talented duo have beaten four seeded pairs on their way to the decider, where Australians Matt Ebden and Max Purcell await.

For the first time since 1980, it will be an all-Australian final in the men's doubles at the year's opening grand slam.

Dubbed the 'Special Ks', the pair took a tough first-set tie-break before being pulled back after leading the second set 4-1.

But Kyrgios and Kokkinakis sealed their win when the latter delivered a wonderful lob, sparking their celebrations in front of a strong Rod Laver Arena crowd.

Ebden and Purcell upset second seeds Joe Salisbury and Rajeev Ram 6-3 7-6 (11-9) in the other semi-final.

Michael Venus hit out at Nick Kyrgios after bowing out of the men's doubles at the Australian Open on Tuesday.

The Kiwi and Tim Putz were beaten 7-5 3-6 6-3 by Kyrgios and Thanasi Kokkinakis in the quarter-finals at a loud Kia Arena.

But Venus was unhappy with Kyrgios, slamming the Australian for his antics.

"There'll always be his supporters and he'll always spin it in a way that helps him, but at the end of the day he's just an absolute k***," he told 1News.

"I think it just speaks for him. His maturity level, it's probably being generous to a 10-year-old to say it's at about that level."

Kyrgios and Kokkinakis have embarked on a memorable run to the semi-finals of the men's doubles, with crowds flocking to their matches.

Despite his criticism of Kyrgios, Venus also praised the two-time grand slam singles quarter-finalist's talent.

"He's an unbelievable tennis player, what he does on the tennis court, what he can do out there, his tennis IQ on the court, it is amazing and he's definitely on that side of things one of the best players in the world," he said.

"But from the maturity side of things you see why he's never fulfilled his potential and probably never will."

Nick Kyrgios is hoping to inspire the next generation of tennis stars after taking centre stage at the Australian Open with his run to the men's doubles semi-finals.

The 26-year-old fan favourite and partner Thanasi Kokkinakis downed sixth seeds Tim Puetz and Michael Venus 7-5 3-6 6-3 in Tuesday's quarter-final clash.

The contest was watched by a lively crowd on Kia Arena and overshadowed Rafael Nadal's five-set win over Denis Shapovalov on Rod Laver Arena at the same time.

Kyrgios and Kokkinakis, who were given a wildcard into the draw after being knocked out of the singles early on, will now face Marcel Granollers and Horacio Zeballos.

"I'm not finished – I want to win this f****** thing," Kyrgios declared in his on-court interview. "We know what we do well and it's world-class. 

"That's what we'll do again. I just want to play and give the people of Australia a show and genuinely grow the sport of tennis."

Kyrgios showed his caring side early in the match when handing a racket to a fan in the crowd after accidentally hitting the youngster with one of Kokkinakis' faulted balls.

The Australian public have embraced the pair's deep run in the competition and Kyrgios, often a controversial character, is glad to see so many younger spectators watching on.

"There is no way around it; me and Thanasi are definitely role models to the youth in Australia. We obviously attract that crowd," he said at his post-match news conference.

"I know that over the years I haven't been the best role model, but I was just learning how to deal with everything. 

"I think now at 26 I have matured, and I've definitely realised that a lot of young kids and people, even people that are low on confidence, they do look towards us.

"We are not special people. We're normal humans that you might see walking in Australia, and we are now in the semi-finals of a grand slam.

"I feel like I think we are just relatable. I think that's what's the best thing about it. They go out and get behind their mates. Most of the guys in the crowd are our mates.

"You've got Roger Federer and these guys that are just once-a-generation athletes. I can't be like that. We're not like that. I feel it has to be people that are a bit more relatable."

The Aussie pair's next opponents Granollers and Zeballos have won six tour-level titles as a team, but have never gone all the way at a grand slam.

Kokkinakis is hoping to have similar backing from the expectant home fans on Thursday.

Asked about the support he and his doubles partner have received so far, Kokkinakis said: "The rowdier the better. Sink p*** and come here.

"The next guys are experienced veterans, but we're going to keep playing how we play, have fun and enjoy the crowd."

Daniil Medvedev did not hold back following his victory over Nick Kyrgios as he labelled spectators who jeered him during the second-round match of having "a low IQ".

The world number two continued his quest for a second grand slam crown, and a first at the Australian Open, with a 7-6 (7-1) 6-4 4-6 6-2 win over Kyrgios on Thursday.

Medvedev, who is the highest-seeded player at Melbourne Park following Novak Djokovic's withdrawal, prevailed against the home favourite in just under three hours.

He played the role of pantomime villain in front of a partisan crowd fully behind Kyrgios, which the Russian took exception to after sealing a place in the third round.

Medvedev, who will take on Botic van de Zandschulp for a place in the last 16, was particularly unhappy with those who made noise between his serves at Rod Laver Arena.

"It's a little bit disappointing," he told Eurosport. "I guess it's normal, everyone experiences it, especially when you play a home favourite and not just any home favourite, but Nick.

"A few moments on my serve, where he managed to make some good returns, and then break point on second serve and people are cheering like you've made a double-fault.

"That's just disappointing. It's not everybody who's doing it, but those who are doing it probably have a low IQ.

"When you get booed between first and second serves you have to stay calm."

The crowd interrupted the interview, at which point on-court reporter and two-time Australian Open winner Jim Courier attempted to play peacemaker.

Courier pointed out that the noisy crowd were shouting 'siuu' in homage to Cristiano Ronaldo's now-trademark celebration.

"Guys I can't hear him, please show some respect for Jim Courier, he won here guys," Medvedev said.

"Let him speak guys. If you respect somebody, at least respect Jim Courier. I cannot hear him guys."

Kyrgios described the 'siuu' chants as like "being in a zoo" after his first-round match, while Andy Murray admitted to being "irritated" by the persistent chanting.

"What I'm saying is that between first and second serves is not easy," Medvedev added. "I remember the games I lost on the break points it was the case and it's tough to play."

Further embracing his role as public enemy number one after eliminating Kyrgios, Medvedev signed the letters "SIUUUU" in the camera lens before exiting the court.

After winning the US Open, Medvedev is aiming to become the first man in the Open Era to follow up his maiden grand slam title with another in his next major appearance.

Last-year's beaten finalist saw off Henri Laaksonen in straight sets in round one and is now the strong favourite to advance past world number 57 Van de Zandschulp.

Medvedev hit 31 aces against Kyrgios – the highest tally in a single grand slam main draw match – en route to reaching the third round in Melbourne for a fourth straight time.

Reflecting on his impressive win, Medvedev said: "Five years ago I probably would break two racquets, just get angry, start shouting at my box for nothing.

"And it probably would not help me win the match. I could win some [matches] like this, but you cannot win grand slams like this.

"So it makes me really happy because I can still have some tantrums, we all know it, but I've been working on myself. 

"I've been working pretty hard last couple of years and I’m trying to mature as a tennis player and a person.

"The match like tonight, and a few last year, show that I'm capable of being really strong mentally no matter what happens on the court and I'm really happy about that."

Nick Kyrgios is box office whenever he plays – and the Australian Open gets a first-week gift in the form of a second-round blockbuster against Daniil Medvedev.

Kyrgios still managed to bring John Cain Arena to life even during a relatively straightforward 6-4 6-4 6-3 win over Liam Broady on Tuesday.

The Australian, who has dropped to 115th in the rankings after not playing since last year's US Open, is arguably the must-watch player in the men's draw.

Anything can happen when Kyrgios is in action. For all the frustrations about a thus far unfulfilled talent, Kyrgios – a two-time grand slam quarter-finalist – is box office.

On Thursday he faces the highest ranked player in the men's draw, last year's US Open champion Medvedev, in what shapes as being a thrilling contest.

Kyrgios has won both of his previous meetings with the Russian second seed, who is among the favourites to win the title at Melbourne Park.

With Roger Federer absent and Novak Djokovic having been deported from Australia, tournament officials have been gifted a contest that belongs in the second week.

All eyes will be on Thursday's schedule, with Kyrgios seemingly likely to miss out on playing on his preferred court – John Cain Arena – in a match that undoubtedly belongs on Rod Laver Arena.

"I mean, obviously either way it's going to be a hell of an experience for me. He's probably the best player in the world at the moment. So I'm pretty excited, I'm excited for that moment. That's why I play the game," Kyrgios said after beating Broady.

"I feel like those matches still excite me, to go out there and play the best in the world. That was always something I wanted to prove to people that someone like me could do, win those matches. I'm not going to go into it with a lot of expectation. I'm going to go out there, have some fun, play my game. I have a pretty set-in-stone game plan of what I need to do to have success.

"As I said, he's probably the best player in the world, he does everything extremely well. He's a hard worker, ticks all the boxes. I'm not going to even think about that now. To play it on John Cain would be – I'm just going to call it the Kyrgios Court – would be fun."

Kyrgios and Medvedev played twice in 2019, the Australian winning two tie-breaks in their most recent meeting in the final in Washington in August of that year.

Medvedev was a top-10 player then, but it would be later in that year that the Russian would truly make an impact, edged by Rafael Nadal in the US Open final.

He went 20-3 at majors last year, winning the title at Flushing Meadows, reaching the final in Melbourne and the French Open quarter-finals.

When he met Kyrgios in Washington, Medvedev had won four ATP titles. He now has 13 to his name.

"Yeah, I just became a different player in terms of ranking and titles. It gives you experience. That's where you can try to win matches which you have lost before, opponents which you have lost before," Medvedev said following his opening-round win against Henri Laaksonen.

"I think there are still some guys on tour who I haven't beat. So can stay like this. I think our last match was so long ago and we are both so different and a different momentum of our careers that it's really tough to count it. As I say, win or lose, I don't think these two matches gonna count into this one, so yeah."

Nick Kyrgios threw in an underarm serve in the second game of his Australian Open campaign, before tossing in a curveball in the post-match news conference.

Speaking after his 6-4 6-4 6-3 win over an outmatched Liam Broady on John Cain Arena, Kyrgios proposed he might play doubles with Novak Djokovic in the future.

Australian Kyrgios has dramatically changed his tune on the Serbian, but not in the way many have altered their perspective following recent events.

Djokovic was deported from Australia in the hours before the Australian Open got under way, a consequence of his own failure to get a COVID-19 vaccine and seemingly mixed messages from authorities before a court settled the kerfuffle.

His behaviour in December after a positive COVID-19 test has been widely criticised, and the reputation of arguably the greatest tennis player of all time has taken a battering in the past fortnight.

Kyrgios recently observed the treatment of Djokovic, a nine-time champion of the Melbourne Park grand slam, had been "really bad" and said it was important to "do better" by the 20-time slam winner.

The 26-year-old from Canberra has emerged as an unlikely cheerleader for the player he described as "a tool" and "a very strange cat" last February, after Djokovic was reported to have requested improved quarantine accommodation on arriving in Australia.

Now Kyrgios is revelling in his apparent sudden popularity in Serbia, where Djokovic's banishment from Australia was greeted with anger and dismay.

"I mean, it's great," Kyrgios said of his new standing. He then turned his focus to why he has stood up for his new friend.

"Obviously me and Novak have had some, I guess, differences in the past. But whether it was Novak or someone else, I would have done the same thing," he said.

"I didn't do it because he was Serbian. If it was another player in that scenario, I would have stood up for what I think was right.

"I think it was just coincidentally it was Novak, and, you know, it was quite a story. But we've got a bit of a bromance going on now, so I'm not going to complain.

"I think I'm going to ask him to play doubles somewhere."

It remains to be seen where this might next prove possible. Djokovic might find he needs a vaccination to play the French Open and US Open this year, amid reports an increasing number of tournaments will insist on players being immunised as a condition of entry.

Kyrgios, meanwhile, faced a daunting second-round match in Melbourne, with title favourite and de facto top seed Daniil Medvedev awaiting him.

Nick Kyrgios compared the crowd during his Australian Open first-round win to a zoo as fans copied a famous Cristiano Ronaldo celebration at almost every point.

Cries of 'siuu' could be heard throughout much of the home favourite's straight-sets victory over Liam Broady, his first match since a Laver Cup defeat to Stefanos Tsitsipas in September.

The shouts were apparently mimicking Manchester United star Cristiano Ronaldo's famous goal celebration.

There were similar incidents during Andy Murray's battling five-set win over Nikoloz Basilashvili, as the five-time finalist won his first match at the Melbourne major since 2017.

The raucous crowds caused confusion as many observers wondered if Murray and Kyrgios were being booed on court, despite each player also enjoying huge support.

Kyrgios later explained he was not surprised to hear the noise from the stands but was taken aback by how long they persisted.

"It's just a stupid, f***, I can't believe they did it so much," he said after his 6-4 6-4 6-3 victory on John Cain Arena. "They were doing some Ronaldo thing. Ronaldo does it every time he scores.

"It's like... I thought they were going to do it for like 10 minutes. They did it for two and a half hours, like, every point. I don't know why. It was a zoo out there."

Murray had wondered if the crowd was turning on him during his epic 6-1 3-6 6-4 6-7 (5-7) 6-4 victory because he had been targeted during his practice session on Monday.

"Initially, I thought it was [booing] because there were some people booing during my practice yesterday," he said. "I have no idea what for! 

"But then, after a few times, it was like, no, they're doing that, I think it's like 'Siuu' or something that Ronaldo does when he scores. And, yeah, it was incredibly irritating!"

Kyrgios produced some superb if often unorthodox tennis as he booked a second-round clash with world number two Daniil Medvedev, who is the highest-ranked male in the draw following the refusal to allow Novak Djokovic to compete.

The 26-year-old would like to return to John Cain to aid his chances of improving his record against the Russian to 3-0.

"It's going to be a hell of an experience for me," he said. "He's probably 'the' best player in the world at the moment. So I'm pretty excited, I'm excited for that moment. That's why I play the game.

"I feel like those matches still excite me, to go out there and play the best in the world. That was always something I wanted to prove to people that someone like me could do, win those matches.

"I'm not going to go into it with a lot of expectation. I'm going to go out there, have some fun, play my game. I have a pretty set-in-stone game plan of what I need to do to have success.

"As I said, he's probably the best player in the world, he does everything extremely well. He's a hard worker, ticks all the boxes. I'm not going to even think about that now. To play it on John Cain would be – I'm just going to call it the Kyrgios Court – would be fun."

Nick Kyrgios pulled out of the Sydney Tennis Classic due to testing positive for coronavirus shortly before he was due to face Italy's Fabio Fognini.

The Australian had been one of the tournament's major draws as the home favourite but now cannot compete and that has subsequently thrown his Australian Open participation into question.

Fognini took full advantage of the situation as he saw off lucky loser Daniel Altmaier 6-3 7-5 to move into the second round.

There he will be joined by – among others – David Goffin, with the Belgian winning a game for the first time in eight months as he beat Facundo Bagnis 6-4 6-4 after an injury-ravaged 2021.

Fifth-seed Lorenzo Sonego was the highest seed in action and he was made to work hard for his 3-6 6-3 7-5 win over Hugo Gaston, needing almost two hours and 45 minutes to get the job done.

The day's other game saw Jordan Thompson win on home soil, beating Marcos Giron fairly comfortably 6-4 6-2.

At the Adelaide International 2, Tommy Paul came out on top in the battle of the Americans as he cruised to an impressive 6-2 6-3 win over Frances Tiafoe in just 69 minutes.

Local boy Aleksandar Vukic clinched the biggest scalp of his professional career as the world number 156 – a wild card entry for the tournament – beat Alexander Bublik 7-6 (7-5) 6-2.

Arthur Rinderknech and Jaume Munar also progressed, the latter defeating Australia's John Millman.

Nick Kyrgios is a doubt to take part at the Australian Open after testing positive for COVID-19.

The Australian star withdrew from the Sydney Tennis Classic hours before he was due to face Fabio Fognini.

The 26-year-old had already pulled out of the Melbourne Summer Set last week after struggling with an unknown illness that affected his asthma.

He was tested for coronavirus but all had come back negative until Monday.

With the first grand slam of 2022 just one week away, Kyrgios hopes he will recover in time to enter the draw.

"Hey everyone, I just want to be open and transparent with everyone, the reason I have had to pull out of Sydney is because I tested positive for Covid," he wrote on Instagram.

"I am feeling healthy at the moment with no symptoms. I wish everyone all the best and to stay safe where you can.

"If all goes well I will see you all at the Australian Open."

Kyrgios has not played a singles match since losing to Stefanos Tsitsipas at the Laver Cup last September and has dropped to 114 in the world rankings.

The former world number 13, who lost a thrilling five-set match with Dominic Thiem in the round of 32 in Melbourne last year, has only once gone as far as the quarter-finals at his home grand slam.

He reached the last eight in 2015, where he lost in straight sets to beaten finalist Andy Murray.

Novak Djokovic will be "p***ed off" and more determined than ever to win the Australian Open if he is freed from detention on Monday, according to Nick Kyrgios.

The nine-time champion at Melbourne Park had his visa revoked when he arrived in Australia this week, with Border Force officials determining he had "failed to provide appropriate evidence to meet the entry requirements".

He secured an injunction to avoid immediate deportation on Thursday and is spending the weekend at the Park Hotel, also home to refugees and asylum seekers, before his case is heard in court on Monday.

His lawyers have filed a detailed response and called for Djokovic to be liberated, also revealing the 34-year-old Serbian tested positive for COVID-19 on December 16 and has made a full recovery.

Djokovic has a startling 82-8 win-loss career record at the Australian Open and has earned $21,775,855 (US dollars) for his endeavours at the first grand slam of the tennis season.

Should he be cleared to play this time, and successfully defend his title, it would make him the outright leader for men's grand slam titles with 21, nudging him ahead of Rafael Nadal, who is also set to compete, and Roger Federer, who is absent.

Kyrgios has been a fierce critic of Djokovic in the past, but the Australian firebrand this week said the handling of the Belgrade superstar's case had been "really bad" and those taking satisfaction from his situation should "do better".

Having aired those views on social media, Kyrgios expanded on his thoughts in a news conference on Saturday, saying: "For the sport, we need him here.

"I'm feeling for him now, it's not really humane what’s going on. If he's allowed to play the Australian Open, I don't want any bar of him. I reckon he's going to be p***ed off.

"He's going to be very determined to play well and stick it to everyone. And I don't want any bar of that Novak."

Kyrgios claimed media coverage of his comments about Djokovic has "divided us", stating his past remarks have been "blown out of proportion".

In January 2021, Kyrgios described Djokovic as "a tool" after reports he was seeking privileged quarantine restrictions ahead of last year's Australian Open.

Speaking to the No Challenges Remain podcast in 2019, Kyrgios said of Djokovic: "I just feel like he has a sick obsession with wanting to be liked. He just wants to be like Roger [Federer]."

There has been obvious animosity in the past, but this time around Kyrgios is siding with Djokovic. He wants there to be a greater respect shown by Australia towards the world number one.

"I feel he's helped us as well. Like during the bushfires, he was supportive, he was helping us out," Kyrgios said.

"I feel like I could use this as a publicity stunt. I could just agree with the general person and say, 'Yeah, this isn't good', and use it. But I don't think that's right."

Nick Kyrgios has labelled the reaction to and handling of Novak Djokovic's predicament as "really bad".

Djokovic faces deportation from Australia after having had his visa application cancelled.

The world number one has not revealed his vaccination status against COVID-19, but was set to compete at the Australian Open under a medical exemption.

That decision called uproar in Australia, which has been under strict lockdown restrictions for much of the pandemic.

However, Djokovic was denied entry into Australia upon his arrival at Melbourne airport, with Australian Prime Minister Scott Morrison saying the 20-time grand slam champion would be on "the next plane home" if he failed to produce a sufficient reason for his medical exemption.

Australian Open tournament director Craig Tiley insisted that the 20-time major champion had not been given a "special favour" to play in the tournament, though the decision faced immediate and widespread backlash.

Djokovic is currently hauled up in a hotel after an interim injunction hearing was pushed back to Monday at 10am local time, with Federal Circuit Court Judge Anthony Kelly ruling that the Serbian could not be deported until at least 4pm on Monday, local time.

Several of Djokovic's fellow players, including Rafael Nadal, have criticised the 34-year-old's stance and the decision to initially allow him to compete.

Yet Kyrgios, who has never seen eye to eye with Djokovic, has not joined those critics, and instead hit out at how Australia, and the media, have handled the situation.

"Look I definitely believe in taking action, I got vaccinated because of others and for my mum's health, but how we are handling Novak’s situation is bad, really bad," Kyrgios tweeted on Friday.

"Like these memes, headlines, this is one of our great champions but at the end of the day, he is human. Do better."

Kyrgios said in November that he believed the Australian Open should be cancelled if it was mandated that competitors would have to be vaccinated.

 "I don't think the Aus Open should go ahead, just for the people in Melbourne – you’ve got to send a message," Kyrgios said on his 'No Boundaries' podcast at the time.

Nick Kyrgios believes the Australian Open should be cancelled as he threw his support behind rival Novak Djokovic, insisting the COVID-19 vaccine mandate is "morally wrong".

It remains to be seen whether world number one Djokovic will defend his Australian Open title in Melbourne in January due to vaccination requirements.

The state of Victoria, where the year's opening grand slam takes place at Melbourne Park, has introduced a vaccine mandate for professional athletes and across most industries amid the coronavirus pandemic.

The 2021 Australian Open went ahead, albeit in February instead of January, and without fans for most of the tournament following a snap lockdown of Melbourne due to COVID-19.

Djokovic was among the players critical of the conditions athletes endured prior to this year's Australian Open, with strict quarantine measures introduced.

Kyrgios and Djokovic have clashed in the past, but the former backed the nine-time Australian Open champion as he called for the upcoming grand slam to be scrapped.

"I don't think the Aus Open should go ahead, just for the people in Melbourne – you’ve got to send a message," Australian former world number 13 Kyrgios said on his 'No Boundaries' podcast.

"How long did [Melbourne] do in lockdown? 275 days or something?"

Kyrgios also referenced Brooklyn Nets star and NBA champion Kyrie Irving, who is yet to feature this season due to his refusal to be vaccinated against coronavirus, which is preventing him from practicing or playing – New York has a mandate in place that states players must have had a COVID-19 jab.

Kyrgios – an Australian Open quarter-finalist in 2015 – added: "Kyrie, Novak … These guys have given so much, sacrificed so much. They are global athletes who millions of people look up to.

"I just think it is so morally wrong to force someone to be vaccinated.

"I'm double vaccinated, but I just don't think it's right to force anyone [to be vaccinated] and say 'you can't come and play here because you're not vaccinated'.

"There are other solutions around it, [such as] to get tested every day. In the [United] States I know they've got rapid tests, and it's coming to Australia. It's 85 per cent success rate, you wait 15 minutes and then you're allowed to play."

Victorian sports minister Martin Pakula hit back on Tuesday, telling reporters: "I really like Nick Kyrgios and I cheer for him every time he plays and I certainly don't want to have beef with Nick Kyrgios but I actually couldn't follow the logic of his comments. We've had a long lockdown so the Australian Open shouldn't proceed? I'm not sure I follow that.

"I think the opposite applies. Melburnians, Victorians and, frankly all Australians, are absolutely gagging for major events. Our economy needs it, our state psyche needs it. It's a global grand slam, it's going to go ahead."

Team Europe are poised to seal yet more Laver Cup glory after producing another dominant display against Team World, though the focus was on Nick Kyrgios following comments about his long-term future.

Europe swept Saturday's four matches in Boston to stand on the cusp of a fourth consecutive Laver Cup triumph – the defending champions lead 11-1 and require just two more points to clinch the title.

Stefanos Tsitsipas blitzed Team World's Kyrgios 6-3 6-4 at TD Garden, where Olympic Games gold medallist Alexander Zverev beat John Isner 7-6 (7-5) 6-7 (6-8) 10-5 before US Open champion Daniil Medvedev made light work of Denis Shapovalov 6-4 6-0.

Team Europe secured their fourth win of the day in the doubles – Tsitsipas and Andrey Rublev teaming up to defeat Isner and Kyrgios 6-7 (8-10) 6-3 10-4.

After Kyrgios' straight-sets loss to Greece's Tsitsipas, the 26-year-old Australian star casted doubt over his tennis future.

"This is my probably my last Laver Cup," former world number 13 Kyrgios – an Australian Open and Wimbledon quarter-finalist – told reporters post-match. "I don't know how much longer I will be in tennis.

"This is my last event of the year. I will get my body right ahead of the Australian Open.

"My mum is not doing too well with her health. I'd like to go back and see her."

"As long as I'm on the court, I will try and give my best, but I'm not going to lie and say that I'm going to plan to play four or five more years on tour," Kyrgios said. "That's just not me."

Playing for the first time since earning his maiden grand slam trophy at the expense of record-chasing Novak Djokovic at Flushing Meadows, world number two Medvedev suffered no letdown against Shapovalov.

"I played unbelievably, especially [in] the second set," Russia's Medvedev said in his on-court interview. "I didn't know what to expect because after the US Open, I didn't play for a week and a half. Came here, practised as much as I could the past three days, so I didn't hit [that] many balls, but was surprisingly feeling well.

"I wanted to show that also today. [The] first [set] was not easy, the ball was not going as fast as I wanted [and] he was playing really good. And then I just couldn't miss a ball anymore. I'm really happy about [that]."

Andy Murray was left in "the strangest situation" he has experienced before a tour match at the Winston-Salem Open following Nick Kyrgios' withdrawal.

Murray had been due to face Kyrgios in an enticing first-round clash in North Carolina, only for the Australian to pull out due to a knee issue.

Former world number one Murray was then drawn against a lucky loser from qualifying, which had only been completed shortly before Murray was due to go on court on Sunday.

The tight turnaround prompted Pierre-Hugues Herbert and Max Purcell to decline the chance to take on Murray, while another option, Yosuke Watanuki, ended up with a direct path to the main draw.

Home hope Noah Rubin, who played his college tennis at the same venue having competed for Wake Forest University, stepped in shortly after his qualifying defeat to Lucas Pouille.

Despite Rubin's best efforts, the challenge proved too much for him as Murray swept to a 6-2 6-0 win, capping a bizarre evening for the three-time grand slam champion.

"It is, by far, the strangest situation I've ever been in before a match on tour," said Murray. "It's pretty rare that you experience something new when you're 17 years into your career.

"I sort of knew at 6:15 that Nick wasn't going to play, but the qualifying was still going on. I was told that if I played a lucky loser, I would play this evening, but if I played against a qualifier the match would be suspended until tomorrow [Monday].

"Then I was told that I drew a lucky loser and I was going to be playing this evening against Pierre-Hugues Herbert, that was like 15-20 minutes after the last qualifying match finished, then Herbert decided he didn't want to play.

"Then they went down the list and none of them, Purcell and Watanuki, they didn't want to play either. And Rubin, who had obviously just finished playing 20 minutes beforehand said, 'yeah I'll do it. I'll play'.

"I kind of had like three opponents in the space of 45 minutes, I was warming up for the match to start at seven and then stopped and then prepared to play Herbert then he didn't want to play then Noah obviously decided but he'd just finished so it was a break and it was just very, very odd sort of 45 minutes, an hour before we went on."

Murray is due to face 13th seed Frances Tiafoe in the second round.