Gael Monfils needs surgery for a right foot injury and will miss the upcoming French Open.
The 35-year-old Frenchman withdrew Monday from the ongoing tournament in Lyon and from the grand-slam event at Roland Garros, which starts Sunday in Paris.
"Hi all, I regret to inform you that I am forced to withdraw from Open Parc de Lyon and the French Open next week. I have been bothered by a calcaneal spur since Monte Carlo at my right heel which prevents me from moving properly on court," Monfils wrote on Twitter. "I have decided to undergo a small procedure this week to treat the issue before returning to competitive play. I will keep you updated about my progress when I have more news."
Monfils, ranked No. 22 in the world, has won 11 singles titles on the ATP Tour. He reached the semifinals of the French Open in 2008 and made the quarterfinals in 2009, 2011 and 2014.
He is 12-6 this season, including a title at Adelaide International 1 in January.
Monfils just announced on social media Sunday that he and wife Elina Svitolina, who have been married since July, are expecting their first child.
--Field Level Media