"I think a lot of people are either second guessing her decision or just saying 'You know what, Marion Bartoli played her tennis career on her own terms, in her own way, this is exactly the way Marion Bartoli would go out.' "
Goran Ivanisevic, who was unable to defend his Wimbledon title in 2002 due to injury, said Bartoli might regret her decision when next year's tournament starts in late June.
"There is nothing like playing at Wimbledon as 'Wimbledon champion.' I couldn't defend." the Croatian told the website of the senior players' Champions Tour.
Guy Forget, who was Bartoli's captain in France's 2004 Fed Cup team, said she may have made a hasty decision.
"Marion is a very smart girl, she is so dedicated about the sport that I'm always very cautious about someone's quote right after a defeat, and that happened right after she lost," the former world No. 4 told the Champions Tour website.
"I hope she is going to change her mind. You don't want to have regrets looking back. Being a professional player is such an exceptional job and you don't want to look back in a few months or years later and think, 'Why did I stop?'
"Go to the beach for a few days, go running in the park, just get your head together, spend some time with your friends. And, if you don't want to play the next week, just don't play it -- if you want to miss the U.S. Open, fine.
"But just don't quit, don't take such a radical decision only a few weeks after winning the biggest tournament in the world."