Tennis star Naomi Osaka faces being thrown out of the French Open if she continues to avoid speaking to journalists at news conferences.
The world number two skipped the press conference following her first-round victory at Roland Garros on Sunday, and was fined $15,000 (£10,500) for doing so.
She revealed last week that she would not be meeting the press in Paris because of mental health concerns.
But the board of grand slam tennis tournaments said there would be consequences should Osaka continue her new policy.
“As might be expected, repeat violations attract tougher sanctions including default from the tournament,” it said.
Players’ mental health is “of the utmost importance to the grand slams”, the board added.
But it continued: “A core element of the grand slam regulations is the responsibility of the players to engage with the media, whatever the result of their match.”