Novak Djokovic returned to court on Sunday to fight an attempt to deport him because of what a government minister described as a perception that the top-ranked tennis player was a "talisman of a community of anti-vaccination sentiment.".

1-ranked tennis player and nine-time Australian Open champion might begin on Monday his title defense at the first Grand Slam tennis tournament of the year.

Immigration Minister Alex Hawke on Friday blocked the visa, which was originally revoked when he landed at a Melbourne airport on January 5.

On Sunday, Federal Chief Justice James Allsop gave his reasons for rejecting Hawke's argument that the case only warranted a hearing by a single judge.

Djokovic could not appeal a decision made on Sunday or Monday in time to compete in the Australian Open, Allsop said.

Djokovic, if he lost, would or maybe in least in part made inutile because of the proximity of the commencement of the event being the purpose of his visit and the purpose of his visa," Allsop said.

But the minister said Djokovic's presence in Australia may be a risk to the health and "good order" of the Australian public and "may be counterproductive to efforts at vaccination by others in Australia.".

The Health Department advised that Djokovic was a "low" risk of transmitting COVID-19 and a "very low" risk of transmitting the disease at the Australian Open."?

The minister cited comments Djokovic made in April 2020 that he was "opposed to vaccination" and had wouldn't want to be forced by someone to take a vaccine to compete.

10 — if he can get out of quarantine and get his visa back," Harrison McLean, one of the rally organizers, said.

In canceling Djokovic' visa, Hawke said Prime Minister Scott Morrison's government "is firmly committed to protecting Australia's borders, particularly in relation to the COVID-19 pandemic.".

Serbian President Aleksandar Vucic accused the Australian government of "harassing" and "maltreating" Djokovic and asked whether Morrison's government is just trying to score political points ahead of upcoming elections

"Why didn't you return him back right away, or tell him it was impossible to get a visa?" Vucic asked the Australian authorities in a social media address