Monfils, 40, can no longer enter tournaments, meaning his second-round loss at the US Open stands as his final professional match.

The timing has caught the tour off guard. The Frenchman had received a wild card to the ATP 250 event in Lyon, which starts October 18, and had long pointed to the Rolex Paris Masters, beginning October 31 at Paris La Défense Arena, as the stage where he would say goodbye. He will play neither.

“He has informed us. He is now considered retired and no longer permitted to compete in tournaments,” ITIA communications director Adrian Bassett told L’Equipe. EssentiallySports confirmed the date and the formal consequence: once a player is placed on the list, the anti-doping whereabouts obligation also falls away.

Organisers in Lyon announced that Monfils had withdrawn for personal reasons before the ITIA listing became public.

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A career of semi-finals and marathon matches

Monfils retires with a career-high ranking of world No. 6, reached in November 2016. Grand Slam titles eluded him; his best results were semi-final runs at Roland Garros in 2008 and the US Open in 2016, and he never reached a major final.

In the 2014 Davis Cup final against Switzerland, he beat Roger Federer in three sets, one of the signature results of his career, even though France lost the tie.

Flushing Meadows got the proper farewell

The exit he had planned for Paris never happened. The goodbye came instead in New York.

Monfils lost 6-3, 6-4, 6-3 to 20-year-old American Learner Tien in the second round of the US Open on Louis Armstrong Stadium, where the crowd chanted his name throughout the evening. He became the oldest player to win a match at the US Open since Jimmy Connors in 1992.

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Afterwards he spoke to the fans.

“I came here in 2003 for the juniors for the first time, and here I am in 2026, so it has been a long journey,” Monfils said on court.

“It has been an honour to play all these years in front of you. I tried to deliver top quality, but also to give you a show.”

His wife, Elina Svitolina, played mixed doubles with him at the same tournament. Monfils joked that it was “the first and last time” the couple would compete together on tour.

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From the baseline to an office in Zurich

Monfils already has his next job lined up. He confirmed in New York that he has signed with a Swiss wealth management firm.

“I’m going to work in finance. I’ve already signed to work in wealth management at a Swiss company. So my next chapter will be an office job in finance,” he said.

The main draw at the Rolex Paris Masters begins October 31. Monfils is not on the entry list.

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