ROGER FEDERER’S knee is again forcing him to miss significant time on the court.

In an Instagram video message Sunday, Federer revealed that his balky knee needs more surgery, which will end the 40-year-old’s season before the U.S. Open kicks off in several weeks.

Federer said that the surgery — his third on this knee — will keep him on crutches for “many weeks,” and off the court for “many months.” He has no intention of retiring yet, but he recognized that at his age, a full comeback will be tough.

“I want to give myself a glimmer of hope to return to the Tour in some shape or form,” Federer said.

Federer said he hopes that his fitness and commitment to staying active will help him recover and get another shot at playing high-level tennis.

Federer hasn’t been able to get clear of this knee issue. He had his first surgery on his right knee in February 2020, which forced him to miss multiple tournaments, including the French Open. He wanted to return for grass court season, but announced in June 2020 that he needed a second procedure on his knee and would miss the rest of the season.

The 2021 season was supposed to be Federer’s comeback, but he wasn’t able to start on time. (SD-Agencies)