His medical file was reviewed by the governement's own Australian Technical Advisory Group on Immunisation (ATAGI) for COVID-19, and a state of Victoria medical review board set up to review such cases. He took two test before taking off from Belgrade, and then in Dubai.

Then, based on that, the Australian embassy delivered a visa for his entry on Australian territory. That visa was then rescinded by a deputy assistant directly under the Minister of Foreign affairs after his plane from Dubai took off.

So "the government" all the way, no Tennis Australia in sight.