Andy Murray refused to add to Novak Djokovic's troubles after the Serbian star's visa saga reared up again, insisting he would not "start kicking Novak while he's down".

Some players have been critical of Djokovic, while world number four Stefanos Tsitsipas said the Serbian has been "playing by his own rules" after refusing to be vaccinated against the COVID-19 virus.

Djokovic faces a critical Federal Court hearing on Sunday that looks set to determine whether he can play at the Australian Open, which starts the following day.

Although the Serbian arrived in Australia with a medical exemption for the grand slam tournament, which he has won on a record nine occasions, that did not satisfy Border Force officers who last week decided Djokovic did not meet entry requirements.

After four days in detention, Djokovic won a first challenge against the visa decision on Monday and has been able to train at Melbourne Park in the days since; however, he will be returned to detention on Saturday morning in the Victoria state capital after immigration minister Alex Hawke cancelled the visa anew.

Murray said: "It's not a good situation. I'm not going to sit here and start kicking Novak while he's down. It's unfortunate it's ended up in this sort of situation.

"It's just one to get resolved. I think it would be good for everyone if that was the case. It seems like it's dragged on for quite a long time now.

"It's not great for tennis, not great for the Australian Open, not great for Novak, and a lot of people have criticised the government here as well, so it's not been good.

Murray banged his head against a microphone in exasperation as he faced another question on the matter, clearly by now sick of being asked about Djokovic.

The Scot, a former world number one and long-time friend and rival to Djokovic, was asked about the latest developments after coming off court, having just booked his place in the final of an ATP Tour event for the first time since 2019.

Speaking after his semi-final win at the Sydney Classic, Murray said: "I would encourage people to get vaccinated.

"But I do feel like people should be able to make their own decisions. Ultimately, people have to make their own choices, but there is also consequences sometimes for those decisions as well."

Former doubles world number one Rennae Stubbs told Australian broadcaster ABC she expected the story to keep rumbling on.

"It's not over, he's staying in the country, but for the ramifications for the Australian Open, it's huge," Stubbs said.

"It's hard to know, obviously I'm not in his mind, but I would say he's going to be extremely disappointed, very sad, angry. I think he's probably going through all the emotions you can imagine as a human being."

Before the hearing on Sunday was confirmed, Stubbs said: "Unfortunately for Novak, it's not looking good."

Djokovic has been drawn to face fellow Serbian Miomir Kecmanovic in the first round in a match that would be expected to take place on Monday or Tuesday.

Although the case of Djokovic has drawn global attention, Australian Stubbs said the single-minded nature of tennis players meant most were "really not concerned about Novak and his dilemmas".

"I think they're ready to get on with this tournament," she said. "I frankly think that most of them are sick and tired of talking about Novak and dealing with this situation in general."

Novak Djokovic's Australian Open fate is set to be determined in a fresh hearing on Sunday – with the defending champion back into detention before that takes place.

In a crushing blow to his preparations for the grand slam, Djokovic learned on Friday that his visa had been revoked for a second time, meaning he faces the prospect of deportation.

The 34-year-old is fighting the decision, and lawyer Nick Wood, on behalf of Djokovic, contended in a directions hearing on Friday evening that the "underlying new rationale" behind the Australian government's latest move to kick out the Serbian is that it contends his presence "will excite anti-vax sentiment".

Wood said immigration minister Alex Hawke had given no consideration to the impact that deporting Djokovic may have among those opposed to COVID-19 vaccines, saying his client was of "negligible risk", "of good standing" and had a medical contraindication to a vaccine.

In a statement released on Friday, Hawke said the decision had been taken "on health and good order grounds, on the basis that it was in the public interest to do so".

Djokovic has expressed opposition to vaccine mandates in the past and has confirmed he has not been vaccinated.

For Djokovic, Wood said: "The minister only considers the potential for exciting anti-vax sentiment in the event that he's present, but the binary alternative of forcibly removing this high profile, legally compliant, negligible risk, medical contraindication player, precluding or impairing his ability to come back to Australia for three years and prejudicing his career, on the basis of two statements made in 2020 and the possible perception of those statements by others; the minister gives no consideration whatsoever to what effect that may have on anti-vax sentiment and indeed on public order. That seems patently irrational."

The case has been transferred from the Federal Circuit Court to the Federal Court of Australia, judge Anthony Kelly said, and will take place via videolink.

An initial hearing will take place with justice David O'Callaghan from the Federal Court on Saturday at 10:15 local time (Friday 23:15 GMT), it was announced.

Whatever happens now, this is woeful preparation for Djokovic ahead of the tournament where he was planning to mount an assault on a 10th Australian Open title, and a record-setting 21st grand slam.

He was cleared to spend Friday night at his current accommodation, rather than be moved immediately back into detention, but that is set to occur on Saturday morning at 08:00 local time in Melbourne when he reports for an interview with immigration officials.

Djokovic will then be allowed to attend meetings with his solicitors in person from 10:00 to 14:00 on Saturday, accompanied by Border Force officials, before returning to a detention hotel until he is reunited with his solicitors from 09:00 on Sunday.

To avoid possible disorder on the streets, he is set to meet his legal team away from their Melbourne offices, where fans gathered and unruly behaviour took place following Djokovic's first effort to clear a path to play at the tournament that begins on Monday.

Djokovic will for now be unable to practise at Melbourne Park. His opening match in the Australian Open is due to be scheduled for Monday or Tuesday.

Hawke explained why the visa had been revoked earlier on Friday, saying in a statement: "In making this decision, I carefully considered information provided by the Department of Home Affairs, the Australian Border Force and Mr Djokovic.

"The [Scott] Morrison government is firmly committed to protecting Australia's borders, particularly in relation to the COVID-19 pandemic."

Concerns have been expressed over the 34-year-old Djokovic's whereabouts prior to arriving in the country. Djokovic admitted there was a false declaration on his travel form to enter Australia, after it stated he had not travelled in the two weeks before arriving in the country.

The tennis star, who was seen in Spain earlier this month, put that down to "human error" and accepted breaching isolation rules in December after testing positive for COVID-19.

World number one Novak Djokovic has had his Australian visa revoked for a second time and now faces being deported from the country.

Djokovic won an appeal on Monday to remain in the country, but immigration minister Alex Hawke used separate powers in Australia's Migration Act to again cancel the visa.

The Serbian must now lodge a fresh legal challenge should he wish to defend his Australian Open title, with the tournament set to begin next Monday. 

Novak Djokovic has had his Australian visa revoked for a second time and now faces being deported from the country.

Novak Djokovic has had his visa cancelled for a second time by the Australian government and faces deportation.

Novak Djokovic put the Australian Open at risk and has made other participants "look like fools" by turning up for the tournament unvaccinated, according to Stefanos Tsitsipas.

World number one Djokovic was paired with Miomir Kecmanovic in Thursday's draw for the opening round, but it remains uncertain whether he will even take part in the first grand slam of the year.

The Serbian was last week given a medical exemption to enter Australia, despite not being vaccinated, only for border officials to block it upon his arrival.

Djokovic was detained for four days while waiting to appeal the case on Monday, which went in his favour at Melbourne Circuit Court.

He has since started training ahead of the Australian Open, which begins next Monday, though immigration minister Alex Hawke may yet cancel his visa for a second time.

The 34-year-old is also being investigated for breaching isolation rules in December after testing positive for COVID-19.

And as a decision regarding whether he can stay in Australia and defend his title is dragged out, Tsitsipas has become the highest-profile tennis figure to criticise Djokovic for his conduct.

"He has been playing by his own rules," world number four Tsitsipas told Indian outlet WION.

"No one would have thought: 'I can come to Australia unvaccinated and not have to follow the protocols they gave me'.

"For Novak it worked another way. It takes a lot of daring to do. Putting a Grand Slam at risk – I don't think many players would do that."

Tsitsipas, who was defeated by Djokovic in last year's French Open final, added: "There are two ways to look at it.

"One way is that almost every single player has been vaccinated and did what they had to do in order to come and play in Australia.

"We have all followed the protocols to come and compete in Australia and been very disciplined in that.

"It seems like not everyone is playing by the rules of how Tennis Australia and some governments have been putting things.

"A very small minority chose to follow their own way. It makes the majority look like they are all fools."

Djokovic has spent the past four days training on court in preparation for the Australian Open, which he has won a record nine times, including in each of the last three years.

But weighing in on the debate on Thursday, Australian deputy prime minister Barnaby Joyce said the 20-time grand slam winner must "abide by the rules" if he is to remain in the country.

"You have to be frank – the vast majority of Australians said they didn't like the idea that another individual, whether they're a tennis player or the king of Spain or the queen of England, can come up here and have a different set of rules to what everybody else has to deal with," Joyce said.

"Let's see where it goes from here… I've made my views clear. I might not agree with the fact that I have to be tested to go from New South Wales into Queensland but I do [it’. Why? Because that is the law.

"He is no better. He is still a child of God like the rest of us, isn't he? So he has got to abide by the laws."

Novak Djokovic has been drawn against Miomir Kecmanovic in the opening round of the Australian Open as the defending champion awaits to hear if he can stay in the country.

World number one Djokovic was last week given a medical exemption to enter Australia, despite not being vaccinated, only for border officials to block it upon his arrival.

The 20-time grand slam winner was detained for four days while waiting to appeal the case on Monday, which went in his favour at Melbourne Circuit Court.

Djokovic has since started training ahead of the Australian Open, which begins next Monday, though immigration minister Alex Hawke may yet cancel his visa for a second time. 

A decision on whether Djokovic can compete in the first grand slam of the year, which he has won a record nine times, could be made on Thursday.

Should he be given the all clear to take part, Djokovic will face compatriot Kecmanovic in the first round at Melbourne Park.

Thursday's draw, which was delayed by one hour and 15 minutes for unspecified reasons, also saw fellow 20-time grand slam winner Rafael Nadal paired with Marcos Giron.

Nadal is in the same half of the draw as Djokovic, meaning the pair could meet in the semi-finals, while third seed Alexander Zverev is also in the top half.

Second seed and 2021 finalist Daniil Medvedev is in the bottom half along with Stefanos Tsitsipas and will take on Henri Laaksonen first up.

In the women's draw, Australia's world number one Ash Barty will begin her quest for glory on home soil against a qualifier.

The top seed is on a collision course with defending champion Naomi Osaka, who goes face-to-face with Camila Osorio in round one on her return from a four-month break.

Reigning US Open winner Emma Raducanu is up against Sloane Stephens, who won the New York major in 2017, while Storm Sanders awaits second seed Aryna Sabalenka.

Novak Djokovic has been labelled "selfish" by Joao Sousa for arriving at the Australian Open unvaccinated, but uncertainty still surrounds the Serbian's participation in the event. 

World number one Djokovic was last week given a medical exemption to enter Australia, despite not being vaccinated, only for border officials to block it upon his arrival.

The 20-time grand slam winner was detained for four days while waiting to appeal the case on Monday, which went in his favour at Melbourne Circuit Court.

Djokovic has since started training ahead of the Australian Open, which begins on January 17, though immigration minister Alex Hawke may yet cancel his visa for a second time.

Should the 34-year-old be given the green light to compete at Melbourne Park, however, world number 140 Sousa says it will not sit right with others taking part.

"I respect that he fights for what he believes and I can be empathetic with what he is going through in Australia," Sousa is quoted as saying by Portuguese outlet Bola Amarela.

"But it's a bit selfish from him to arrive here as the only player unvaccinated. It's tough for us players to accept that."

Djokovic has been widely criticised for appearing on social media to mingle with the public in a series of appearances after returning a positive COVID-19 test on December 16.

In a statement issued on Wednesday, Djokovic accepted he had made "an error of judgement" going ahead with an interview with French publication L'Equipe around that time.

Franck Ramella, the French journalist who conducted the 33-minute interview while Djokovic was COVID-19 positive, confirmed the tennis star wore a mask the whole time.

A decision on whether Djokovic can defend the title he has won a record nine times could be made on Thursday, when the draw for the main tournament is scheduled to take place.

Novak Djokovic has moved to "address the continued misinformation" about his attendance at events in December after he had tested positive for COVID-19 prior to his arrival in Australia.

The world number one, who won an appeal on Monday over his visa cancellation after being detained on arrival in Melbourne last week, wrote a six-panel post on Instagram on Wednesday amid ongoing discussion on his participation at the upcoming Australian Open due to commence on January 17.

Djokovic has come under fire for allegedly incorrectly filling out his Australian Travel Declaration form, with Immigration Minister Alex Hawked stating he would "thoroughly consider" the false declaration.

The 20-time major winner said in the post that this was a "human error" and that he had since provided additional information to the Australian Government to clarify the matter.

The Serbian has also been criticised for appearing on social media to mingle with the public in a series of appearances after returning a positive test for COVID-19 on December 16.

Fellow Grand Slam winner Andy Murray had said on Tuesday that Djokovic needed to explain why he was out in public when positive with COVID-19, with Djokovic explaining his version of events.

"I attended a basketball game in Belgrade on 14 December after which it was reported that a number of people tested positive with COVID-19," Djokovic wrote.

"Despite having no COVID symptoms, I took a rapid antigen test on 16 December which was negative, and out of an abundance of caution, also took an official and approved PCR test on that same day.

"The next day I attended a tennis event in Belgrade to present awards to children and took a rapid antigen test before going to the event, and it was negative. I was asymptomatic and felt good, and I had not received the notification of a positive PCR test result until after that event.

"The next day, on 18 December I was at my tennis centre in Belgrade to fulfil a long-standing commitment for a L'Equipe interview and photoshoot. I cancelled all other events except for the L'Equipe interview.

"I felt obliged to go ahead and conduct the L'Equipe interview as I didn't want to let the journalist down, but did ensure I socially distanced and wore a mask except when my photograph was being taken.

"While I went home after the interview to isolate for the required period, on reflection, this was an error of judgement and I accept that I should have rescheduled this commitment."

Djokovic said the false declaration, where it was written he had not travelled in the 14 days prior to his arrival in Australia, was a "human error" and "not deliberate".

"On the issue of my travel declaration, this was submitted by my support team on my behalf - as I told immigration officials on my arrival - and my agent sincerely apologises for the administrative mistake in ticking the incorrect box about my previous travel before coming to Australia," Djokovic said.

"This was a human error and certainly not deliberate. We are living in challenging times in a global pandemic and sometimes these mistakes can occur. Today, my team has provided additional information to the Australian Government to clarify this matter."

Novak Djokovic has moved to "address the continued misinformation" about his attendance at events in December after he had tested positive for COVID-19 prior to his arrival in Australia.

The world number one, who won an appeal on Monday over his visa cancellation after being detained on arrival in Melbourne last week, wrote a six-panel post on Instagram on Wednesday amid ongoing discussion on his participation at the upcoming Australian Open.

Djokovic has come under fire for allegedly incorrectly filling out his Australian Travel Declaration form, with Australian Immigration Minister Alex Hawked stating he would "thoroughly consider" the false declaration.

The 20-time major winner said in the post that this was a "human error" and that he had since provided additional information to the Australian Government to clarify the matter.

The Serbian has also been criticized for appearing on social media to mingle with the public in a series of appearances after returning a positive test for COVID-19 on December 16 but he moved to clarify that situation too.

Fellow Grand Slam winner Andy Murray had said on Tuesday that Djokovic needed to explain why he was out in public when positive with COVID-19.

"I attended a basketball game in Belgrade on 14 December after which it was reported that a number of people tested positive with COVID-19," Djokovic wrote.

"Despite having no COVID symptoms, I took a rapid antigen test on 16 December which was negative, and out of an abundance of caution, also took an official and approved PCR test on that same day.

"The next day I attended a tennis event in Belgrade to present awards to children and took a rapid antigen test before going to the event, and it was negative. I was asymptomatic and felt good, and I had not received the notification of a positive PCR test result until after that event.

"The next day, on 18 December I was at my tennis centre in Belgrade to fulfil a long-standing commitment for a L'Equipe interview and photoshoot. I cancelled all other events except for the L'Equipe interview.

"I felt obliged to go ahead and conduct the L'Equipe interview as I didn't want to let the journalist down, but did ensure I socially distanced and wore a mask except when my photograph was being taken.

"While I went home after the interview to isolate for the required period, on reflection, this was an error of judgement and I accept that I should have rescheduled this commitment."

Djokovic said the false declaration, where it was written he had not travelled in the 14 days prior to his arrival in Australia, was a "human error" and "not deliberate".

"On the issue of my travel declaration, this was submitted by my support team on my behalf - as I told immigration officials on my arrival - and my agent sincerely apologises for the administrative mistake in ticking the incorrect box about my previous travel before coming to Australia," Djokovic said.

"This was a human error and certainly not deliberate. We are living in challenging times in a global pandemic and sometimes these mistakes can occur. Today, my team has provided additional information to the Australian Government to clarify this matter."

Andy Murray says there are "questions that need to be answered" by Novak Djokovic before the world number one plays in the Australian Open.

Frustrated by the Djokovic saga becoming a distraction, Murray wants the world number one to tie up loose ends at the earliest opportunity, so the tennis world can move on.

There remain grey areas surrounding the Serbian's commitment to isolating after testing positive for COVID-19 on December 16 last year.

A maskless Djokovic was pictured at a Belgrade tennis club's awards event on December 17, and L'Equipe has reported he took part in a photo shoot and interview for the French sports newspaper on the following day. It remains to be established whether Djokovic knew by that stage that he had returned a positive test.

The coronavirus infection allowed Djokovic to qualify for a medical exemption to play at Melbourne Park, and the 20-time grand slam winner confirmed on arrival in Australia that he is unvaccinated, before his visa was initially revoked.

It is not known what his plans would have been for the Australian Open had he not tested positive, as players are required by Tennis Australia to be either vaccinated or have a compelling case for an exemption.

Djokovic was released from a four-day detention in a Melbourne hotel following a court hearing on Monday, and long-time friend and rival Murray said: "It's positive that he's not in detention anymore. He won in court, so that's a positive thing for him, and hopefully we'll be able to concentrate on the tennis now.

"I think there is still a few questions that need to be answered around the isolation and stuff, which I'm sure we'll hear from him in the next few days, but I'm obviously here to try and play and win tournaments."

Australia's immigration minister Alex Hawke could still cancel Djokovic's visa on new grounds, meaning his participation at the year's first grand slam, which begins next Monday, is not yet 100 per cent confirmed. The nine-time Australian Open champion will be seeking a record 21st men's grand slam singles title if cleared to play.

Murray, who won in the first round of the Sydney Classic on Tuesday, is conscious of the Djokovic saga dragging on.

It was clear the Briton believes an important step forward is for Djokovic to answer journalists' questions on the matter.

"It's the first match that I have played here, or won here, in over three years, and this is where the situations like this are frustrating for players," said Murray. "I want to come off and talk about my tennis and what's happening there, not talking about situations like that.

"So I'm hoping that we can move on from it now. He won in court, which is good. It looks like he's going to be able to play and compete in the Australian Open. We do want the best players there.

"But like I said, I think there is still a few questions to be answered. It's up to the press to ask about that and for Novak to clarify, so let's wait to see what he says."

Australia's Immigration Minister will "thoroughly consider" Novak Djokovic's visa status after fresh concerns were raised over his whereabouts in the two weeks prior to arriving in the country.

Djokovic is alleged to have falsely declared he had not travelled in the 14 days prior to his flight to Melbourne in the Australian Travel Declaration form which is a "serious offence".

The world number one flew from Spain to Australia via Dubai but was seen on social media in the 14 days prior to his arrival in his native Serbia with handball player Petar Djordjic.

Djokovic, who trained at Melbourne Park on Tuesday, was released from detention on Monday after winning his appeal and having his visa reinstated.

However, Immigration Minister Alex Hawke said in a statement on Tuesday that he will investigate the claims of Djokovic's false declaration.

“In line with due process, Minister Hawke will thoroughly consider the matter,” a representative said.

Mr Hawke has the power to cancel Djokovic's visa, which would force his deportation ahead of the Australian Open which is due to commence on January 17.

On Monday, Djokovic posted to Instagram: “I’m pleased and grateful that the Judge overturned my visa cancellation. Despite all that has happened, I want to stay and try to compete @AustralianOpen I remain focused on that.

“I flew here to play at one of the most important events we have in front of the amazing fans.”

The ATP has welcomed the outcome of the hearing that will allow Novak Djokovic to play at the Australian Open but reiterated that it continues to encourage its players to get vaccinated against coronavirus.

After days of uncertainty regarding the world number one's participation in Melbourne, it was ruled on Monday he should be immediately released from detention.

That came after authorities cancelled his visa last week, despite the Serbian receiving a medical exemption that allowed him to enter the country, regardless of his vaccination status. Given his application for the exemption, it is assumed Djokovic is unvaccinated.

The Australian Border Force declared Djokovic must fly out of the country on Thursday, sparking the challenge that went in the tennis star's favour on Monday.

However, Australia's immigration minister Alex Hawke could still cancel Djokovic's visa on new grounds, meaning his participation at the year's first grand slam is not yet 100 per cent known.

With the saga seemingly drawing to a close, the ATP published a response to Monday's events.

Its statement read: "The ATP fully respects the sacrifices the people of Australia have made since the onset of COVID-19 and the stringent immigration policies that have been put in place. Complications in recent days related to player entry into Australia have however highlighted the need for clearer understanding, communication and application of the rules.

"In travelling to Melbourne, it's clear Novak Djokovic believed he had been granted a necessary medical exemption in order to comply with entry regulations.

"The series of events leading to Monday's court hearing have been damaging on all fronts, including for Novak's well-being and preparation for the Australian Open. Player medical exemption requests are made independently of the ATP, however, we have been in constant contact with Tennis Australia to seek clarity throughout this process. We welcome the outcome of Monday's hearing and look forward to an exciting few weeks of tennis ahead.

"More broadly, the ATP continues to strongly recommend vaccination for all players on the ATP Tour, which we believe is essential for our sport to navigate the pandemic. This is based on scientific evidence supporting the health benefits provided and to comply with global travel regulations, which we anticipate will become stricter over time. We are encouraged that 97 per cent of the Top 100 players are vaccinated leading into this year's Australian Open."

Novak Djokovic is "pleased and grateful" after winning his court battle to stay in Australia and is focused on defending his title at the first grand slam of the year.

Following days of uncertainty regarding the world number one's participation at the Australian Open, it was ruled on Monday he should be immediately released from detention.

That came after authorities cancelled his visa last week, despite the Serbian being granted a medical exemption that allowed him to enter the country, regardless of his vaccination status.

The Australian Border Force declared Djokovic must fly out of the country on Thursday, sparking the challenge that went in the tennis star's favour on Monday.

However, Australia's immigration minister Alex Hawke could still cancel Djokovic's visa on new grounds, meaning his Australian Open participation is not yet 100 per cent known.

But speaking about the saga for the first time on Monday, Djokovic said he remains hopeful of competing at Melbourne Park next week.

"I'm pleased and grateful that the Judge overturned my visa cancellation," he posted on his personal Twitter account. 

"Despite all that has happened, I want to stay and try to compete at the Australian Open. I remain focused on that. 

"I flew here to play at one of the most important events we have in front of the amazing fans."

In a follow-up tweet to his 8.9 million followers, Djokovic added: "For now I cannot say more but THANK YOU all for standing with me through all this and encouraging me to stay strong."

Twenty-time grand slam winner Djokovic posted the message at the same time that his family were holding a news conference in Belgrade, which he was expected to join via video link.

Djokovic's brother Djordje confirmed that the 34-year-old has already returned to the practice court ahead of the Australian Open, which he has won a record nine times.

After spending the weekend at a detention hotel in Melbourne as he attempted to defeat the deportation order, Djokovic's mother Dijana accused the local authorities of subjecting her son "to torture and harassment".

Dijana added: "This is his biggest win in his career – bigger than any grand slam."

Djokovic's father Srdjan praised the mental strength of his son and put Monday's verdict down as a victory for a wider cause.

"Over the past few days, it's been very, very difficult for everyone in the world who is free thinking. But he is mentally extremely, extremely strong," he said.

"They took away all his rights, as a human being. He refused to revoke his visa. They gave him no right to prepare his defence for several hours, and they took away his phone. 

"Fortunately they gave him back his phone. He contacted his legal team who mounted a fantastic defence, that they could not match.

"This is a huge win for Novak, his family and the free world. He respected everything that was asked of him. He only wanted to go there to play tennis.

"Justice and the rule of law have prevailed. The judge who presided over the case has shown that not for a second was Novak the guilty party. 

"The judge was fantastic, he simply respected the facts. He took the only decision that was possible which was to release Novak."

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.