Novak Djokovic took to the practice court on Friday to continue his preparations for next week's Australian Open as the world No 1 awaits the final verdict over whether the Australian government will cancel his visa for a second time.
Djokovic practised his serves and returns with his team on an empty court at Melbourne Park, occasionally resting in a chair to wipe sweat from his face.
The defending and record nine-time Australian Open champion was included in Thursday's draw as top seed and is due to face fellow Serb Miomir Kecmanovic for his opening match, probably on Monday or Tuesday.
A decision to again cancel his visa over Covid-19 entry regulations could set up a second court battle by the Serbian tennis star, after a court quashed an earlier revocation and released him from immigration detention on Monday.
Melbourne's The Age newspaper cited a source in Prime Minister Scott Morrison's Liberal Party as saying the government was "strongly leaning" towards revoking the visa again.
Djokovic, a vocal opponent of vaccine mandates, fuelled widespread anger in Australia when he announced last week he was heading to Melbourne for the Australian Open with a medical exemption to requirements for visitors to be inoculated against Covid-19.
On arrival, Australian Border Force decided his exemption was invalid and put him in an immigration detention hotel for several days.
Australia has endured some of the world's longest lockdowns, has a 90 per cent vaccination rate among adults, and has seen a runaway Omicron outbreak bring nearly a million cases in the last two weeks.
Finance Minister Simon Birmingham said on morning television on Friday that visa decisions were a matter for the country's Immigration Minister Alex Hawke, but the policy settings of the government overall were "crystal clear".
"That is that people who enter Australia who are not Australian citizens should be double dose vaccinated unless they have a clear and valid medical exemption against that," he said on Channel 9's Today Show.
An online poll by the News Corp media group found that 83 per cent favoured the government trying to deport Djokovic.
Greek world No 4 Stefanos Tsitsipas said Djokovic was "playing by his own rules" and making vaccinated players "look like fools".
"No one really thought they could come to Australia unvaccinated and not having to follow the protocols ... it takes a lot of daring to do and putting the Grand Slam at risk, which I don't think many players would do," Tsitsipas said in an interview with India's WION news channel.
"The stats say 98 per cent of players have been vaccinated and did what they had to do in order to come and perform and play in Australia," he said.
The saga has intensified global debate over rights of choice for vaccines and become a tricky issue for prime minister Morrison as he campaigns for re-election.
Australia is due to hold an election by May, and while Morrison's government has won support at home for its tough stance on border security, it has not escaped criticism over the botched handling of Djokovic's visa.
Fans, however, including many Serbian Australians, gave the 20-time Grand Slam champion noisy support when he was detained and his family have portrayed him as a champion for individual rights.
The Committee for Melbourne, which represents business and arts leaders, says the city's reputation for hosting events has been damaged by the dispute.
"The Djokovic visa and vaccination saga has reflected poorly on all those involved, which is a tragedy considering the excellence of our infrastructure and tournament planning," Chief executive of the committee Martine Letts told The Age.
The saga took on a new twist after it was revealed that Djokovic, who tested positive for Covid-19 on December 16, was then photographed attending public events - including one with dozens of children - in the days following. He also kept an interview appointment with French media outlet L'Equipe even when he knew he was positive.
Additionally, it has been shown that Djokovic provided incorrect information on his visa documents, which stated he had not travelled to another country for 14 days prior to his arrival in Melbourne, when in fact he had travelled from Serbia to Spain.
Djokovic sought to explain the issues in a statement posted on social media, while insisting the incorrect information was an "administrative mistake" by his agent.
