'I was down': Federer had hard time before 2nd knee surgery
FILE - In this Jan. 30, 2020, file photo, Switzerland's Roger Federer speaks during a press conference following his semifinal loss to Serbia's Novak Djokovic at the Australian Open tennis championship in Melbourne, Australia. Federer is withdrawing from this month's Miami Open so he can spend extra time preparing to “work his way back out on tour,” his agent told The Associated Press on Monday, March 1, 2021. (AP Photo/Dita Alangkara, File)

FILE - In this Jan. 30, 2020, file photo, Switzerland's Roger Federer speaks during a press conference following his semifinal loss to Serbia's Novak Djokovic at the Australian Open tennis championship in Melbourne, Australia. Federer is withdrawing from this month's Miami Open so he can spend extra time preparing to “work his way back out on tour,” his agent told The Associated Press on Monday, March 1, 2021. (AP Photo/Dita Alangkara, File)

Mar. 01, 2021 02:11 PM EST
FILE - In this file photo dated Friday Feb. 7, 2020, Roger Federer thanks the crowd after winning 3 sets to 2 against Rafael Nadal in their exhibition tennis match held at the Cape Town Stadium in Cape Town, South Africa. The 20-time Grand Slam champion Roger Federer will face the winner of the match between Jeremy Chardy and Dan Evans in the Qatar Open next week in his first competition for more than a year. (AP Photo/Halden Krog, FILE)

FILE - In this file photo dated Friday Feb. 7, 2020, Roger Federer thanks the crowd after winning 3 sets to 2 against Rafael Nadal in their exhibition tennis match held at the Cape Town Stadium in Cape Town, South Africa. The 20-time Grand Slam champion Roger Federer will face the winner of the match between Jeremy Chardy and Dan Evans in the Qatar Open next week in his first competition for more than a year. (AP Photo/Halden Krog, FILE)

Mar. 06, 2021 01:22 PM EST