Serena Williams will no longer be allowed to wear her black bodysuit at the French Open.
The former world number one made an eye-catching return to the Grand Slam scene at Roland Garros in May after giving birth to her daughter in September 2017.
However, French Tennis Federation president Bernard Giudicelli singled out Williams' catsuit as an example of the kind of attire that will no longer be accepted as the tournament prepares to introduce new dress code rules.
"I think we sometimes went too far," he told Tennis Magazine's 500th edition.
"The combination of Serena this year, for example, it will no longer be accepted. You have to respect the game and the place."
After claiming victory over Kristyna Pliskova in the first round of the French Open, Williams said the catsuit made her feel like a "warrior" and a "super-hero".
"I'm always living in a fantasy world. I always wanted to be a super-hero, and it's kind of my way of being a super-hero," she said of the outfit.
The 23-time Grand Slam champion experienced life-threatening complications after giving birth to daughter Alexis Olympia Ohanian Jr and said the catsuit was more than just a fashion statement.
"I had a lot of problems with my blood clots, and, God, I don't know how many I have had in the past 12 months. So it is definitely a little functionality to it," Williams said at the time of the tournament.
"I have been wearing pants in general a lot when I play, so I can keep the blood circulation going. It's a fun suit but it's also functional, so I can be able to play without any problems."
Williams later withdrew from her fourth-round clash with Maria Sharapova at the French Open through injury. She did not wear the catsuit in her most recent tournament in Cincinnati this month.
She will return to the court at next week's US Open, where the 36-year-old will start her bid for a seventh title against Poland's Magda Linette.