Martina Hingis’ induction into the Tennis Hall of Fame was marred last week after her estranged husband claimed that the 32-year-old was a serial cheater -- in the bedroom, at least.

Thibault Hutin, a 26-year-old French equestrian and estranged husband to Hingis, claims that his wife of nearly three years is a serial adulterer, the London Evening Standard reports. During an interview with Swiss newspaper SonntagsBlick, Hutin said that he once walked in on Hingis while she was with another man, but forgave her -- only to find that she had cheated on him again.

“A year after the wedding [...] we were supposed to meet in New York and I wanted to give her a surprise,” Hutin reportedly told SonntagsBlick. “Upon arriving at the hotel room it was me that was surprised, because Martina was not alone.”

Hutin alleges that he forgave Hingis’ serial adultery and attempted to repair their marriage, the Evening Standard reports. However, “late last year I found out that she had cheated on me again,” Hutin told the SonntagsBlick.

“Martina has a very personal conception of morality. She has always been like that; I think she has always been unfaithful to her boyfriends,” Hutin added. “She is not alone in the tennis world, which I now know quite well. But I thought she was different from the others, that she really loved me.”

Hingis has yet to respond to her husband’s accusations of her serial adultery. On July 13, she became the fourth-youngest member of the International Tennis Hall of Fame, leading the Class of 2013, the Associated Press reported. The former top-ranked tennis star won seven Grand Slam titles before retiring in 2002. She returned to tennis in 2006, but retired after testing positive for cocaine during a drug test, the Evening Standard reports.

Hutin and Hingis began dating in 2010, and were married shortly thereafter, the Evening Standard reports. Hutin claims that he wasn’t even aware that they were separated until he read Hingis’ statement that the couple had split in Schweizer Illustrierten, a Swiss magazine.