Swiss tennis star Roger Federer announced some very disappointing news Sunday afternoon.
Federer announced via Instagram that he will miss the U.S. Open and be sidelined for "many months" because he needs a third operation on his right knee.
Federer, who turned 40 earlier this month, hasn't played a match since losing in the Wimbledon quarterfinals last month. He sat out the Tokyo Olympics because he injured his knee during the grass-court season.
Federer missed more than a year after undergoing his first knee operation after the 2020 Australian Open and having a follow-up procedure that June.
Federer is tied with Rafael Nadal and Novak Djokovic for the men's record with 20 Grand Slam singles titles. However, Djokovic could surpass both Federer and Nadal if he wins the U.S. Open, which begins Aug. 30 in New York.
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