Roger Federer withdrew from the Tokyo Olympic tennis tournament due to a knee injury, according to his social media.
Federer, 39, posted that he had “a setback with my knee” in the just-completed grass-court season, presumably the right knee on which he had two surgeries in 2020.
“I am greatly disappointed, as it has been an honor and highlight of my career each time I have represented Switzerland,” Federer posted.
Federer hopes to return to competition later this summer. The U.S. Open starts Aug. 31.
Tokyo will mark the first Olympics with neither Federer nor Rafael Nadal since the 1996 Atlanta Games.