Novak Djokovic, who is fighting deportation from Australia, tested positive for COVID-19 on 16 December, according to court documents.
The world tennis number one was refused entry and his visa was cancelled earlier this week.
Djokovic said in his court application that he had a valid visa and medical exemption from the organiser of the Australian Open.
Why is Djokovic being denied entry to Australia – and what are their travel rules?
He is currently embroiled in a row over whether he is exempt from the country’s COVID inoculation rules.
The application says he received a document from the Department of Home Affairs on 1 January indicating he met the requirements for quarantine-free travel into Australia.
Djokovic is spending a third day in a Melbourne hotel that has doubled up as an immigration detention facility – a couple of miles from the luxury hotels where most Australian Open players are staying.