On Sunday, he left the country after the many tours around the Serbs' being or not being in Australia.

The decision of the federal court usually means that he can not be granted a new visa for three years.

But by law, he can be granted a visa if the country's immigration minister considers there to be sufficiently convincing or strong reasons for it.

"I will not assume any of that or say anything that makes it impossible for the minister to make the decisions he has to make," Australian Prime Minister Scott Morrison told 2GB radio according to Reuters.

"Is there a possibility"

He continues:

- It applies over a three-year period, but there is an opportunity to return under the right conditions.

And that will be considered when it's time.

The 34-year-old Serb was "extremely" disappointed with Sunday's decision which meant he was not given the opportunity to defend his title at the Australian Open.

Clip: The background to the tours and the view on vaccines

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TENNIS: The background to the tours and the view on vaccines Photo: TT News Agency