Novak Djokovic has said his letter calling for better conditions for players self-isolating in Melbourne was written with "good intentions" and has been "misconstrued as being selfish, difficult and ungrateful".
Seventy-two players are unable to leave their hotel rooms for 14 days.
The Serb said he acted because he "genuinely cares" about fellow players.
Djokovic reportedly asked for reduced isolation periods and having players in quarantine moved to private houses with tennis courts.
In a lengthy social media post, the world number one said he wanted to use his profile to improve conditions for the players, who were forced into quarantine after positive coronavirus test results on flights bound for the event in Australia.