Tennis-Federer to have knee surgery, has 'glimmer of hope' for return

FILE PHOTO: Jul 7, 2021; London, United Kingdom; Roger Federer (SUI) plays against Hubert Hurkacz (POL) in the quarter finals at All England Lawn Tennis and Croquet Club. Mandatory Credit: Peter van den Berg-USA TODAY Sports/File Photo

(Reuters) -Roger Federer will miss the upcoming U.S. Open and be sidelined for many months because he needs more knee surgery, an operation that the Swiss great said on Sunday will give him a "glimmer of hope" that he can resume his glittering career.

The 40-year-old Federer, speaking on a video posted to his Instagram account, said doctors told him that in order to feel better for the medium- to long-term, he would need surgery on the knee that he injured again during the grass court season.