I saw this earlier today on ESPN.com – Naomi Osaka fined $15K for not speaking to French Open media, could face tourney default for avoiding press: https://www.espn.com/tennis/story/_/id/31537667/naomi-osaka-fine-15k-not-speaking-french-open-media-face-tourney-default-avoiding-press. Slightly longer article. Many of these tournaments tend to have strict rules and if you ignore the rules, it will cost you financially as well as potentially not being allowed to continue playing in the tournaments.
D’Arcy Maine May 30, 2021
Naomi Osaka has been fined $15,000 after skipping her mandatory news conference following her first-round win at the French Open on Sunday and could face stiffer punishment, including default from the tournament, if she continues to avoid speaking to the media.
In a joint statement from the four Grand Slam tournaments, the organizations said they had written to Osaka after she announced she would not be participating in her media obligations during the fortnight and reminded her of the consequences stated in the 2021 rulebook should she opt out.
The four tournaments, which also include Wimbledon, the US Open and the Australian Open, said there would be further and greater consequences if she continues to decline her media obligations.