"We didn't expect for this to happen, Bartoli told ITV Sport during her role as a pundit on Friday. "We didn't think the situation was so bad with Naomi. I think the WTA is trying really hard to find some solution.
One of the biggest names in sport, Osaka stunned the tennis world when she pulled out of the Grand Slam on Monday after being fined and threatened with expulsion for declining to face the media after her first-round match on Sunday.
Daria Abramowicz, who is in Paris to assist the 19-year-old Swiatek at the French Open which starts on Sunday, told Reuters that the demands on players affect their mental health and well-being.
"I absolutely understand the (Osaka's) decision in terms of when a player loses a match, and tennis is such a specific sport because at the end of the tournament only one person does not lose," Abramowicz said.
She becomes only the third player after Monica Seles and Roger Federer to win their first four major finals, and will now rise to second in the world rankings.
For her coach, Patrick Mouratoglou, there's no comparison between Williams's achievements and those of Court, who won 13 of her titles when tennis was still an amateur sport.