
Novak Djokovic of Serbia returns a ball from Jiri Lehecka of the Czech Republic in their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 19, 2025. (AP Photo/Asanka Brendon Ratnayake)

Novak Djokovic of Serbia reacts during a fourth round match against Jiri Lehecka of the Czech Republic at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 19, 2025. (AP Photo/Asanka Brendon Ratnayake)

Carlos Alcaraz, front, of Spain reacts during a fourth round match against Jack Draper of Britain, left, at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 19, 2025. (AP Photo/Asanka Brendon Ratnayake)

Carlos Alcaraz, right, of Spain is congratulated by Jack Draper of Britain, left after Draper retires from their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 19, 2025. (AP Photo/Mark Baker)

Novak Djokovic of Serbia returns a shot from Jiri Lehecka of the Czech Republic during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 19, 2025. (AP Photo/Mark Baker)

Carlos Alcaraz of Spain reacts during a fourth round match against Jack Draper of Britain at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 19, 2025. (AP Photo/Mark Baker)

Carlos Alcaraz of Spain kicks the ball during a fourth round match against Jack Draper of Britain at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 19, 2025. (AP Photo/Mark Baker)

Carlos Alcaraz of Spain returns a shot against Jack Draper of Britain during a fourth round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 19, 2025. (AP Photo/Asanka Brendon Ratnayake)

Jiri Lehecka of the Czech Republic returns a shot from Novak Djokovic of Serbia during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 19, 2025. (AP Photo/Asanka Brendon Ratnayake)

Fans of Novak Djokovic of Serbia cheer during his fourth round match against Jiri Lehecka of the Czech Republic at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 19, 2025. (AP Photo/Asanka Brendon Ratnayake)