Topic: Nick Kyrgios

Men's tennis star Roger Federer of Switzerland was forced to withdraw from the Summer Games in Tokyo after experiencing a "setback" with his knee during the grass-court season.

Australian men's tennis star Nick Kyrgios withdrew from the Summer Games in Tokyo on Thursday, saying the lack of spectators at the Olympics "doesn't feel right."

Swiss tennis star Roger Federer advanced to the fourth round at Wimbledon for a record-extending 18th time after beating Britain's Cameron Norrie in four sets Saturday on Centre Court in London.

Novak Djokovic, Serena Williams and Naomi Osaka were among the top players to advance at the 2021 Australian Open on Friday in Melbourne. They are now each just one win from quarterfinal appearances at the Grand Slam.

Serena Williams, Simona Halep, Novak Djokovic and Alexander Zverev have been dominant so far at the 2021 Australian Open and are on pace for respective quarterfinal matchups if they maintain momentum in Melbourne.

Novak Djokovic, Naomi Osaka and Serena Williams were among the top players to advance to the third round of the 2021 Australian Open on Wednesday in Melbourne, while Bianca Andreescu and Venus Williams were eliminated.

Novak Djokovic once said it would be "impossible" to play in the 2020 U.S. Open based on "extreme" protocols for COVID-19. Now he says he is open to the idea of the New York Grand Slam if restrictions "loosen up."

Women's tennis star Serena Williams said Wednesday that she is excited to play in the 2020 U.S. Open this summer in New York, while foreign tennis players have COVID-19-related concerns about playing in the tournament.

Australian tennis star Nick Kyrgios was in tears and sported a Kobe Bryant jersey before his match against Rafael Nadal at the Australian Open Monday to honor the late Los Angeles Lakers legend.

Roger Federer and Simona Halep coasted to wins at the Australian Open and Dominic Thiem survived a five-set thriller to advance to the third round of the Melbourne tournament on Thursday.