Players living under strict quarantine rules after arriving for the Australian Open will get "no special treatment", says Victorian premier Daniel Andrews.
Seventy-two players are confined to their hotel rooms in Melbourne for 14 days after positive coronavirus test results on flights bound for the event.
At least nine infected people - including one player - are in quarantine, officials say.
"The virus doesn't treat you specially, so neither do we," Andrews said.
Some players have complained the harder 14-day quarantine was unnecessary.
With the Grand Slam tournament set to start on 8 February, players are resorting to hitting balls against the walls and windows of their rooms to stay sharp.