Novak Djokovic needed medical attention after accidentally getting knocked on the head by a water bottle after a win at the Italian Open.

Novak Djokovic took a little while to get going in his first match in nearly a month.

The U.S. Open's new review system allowing players to challenge certain calls, such as double bounces, has been used for the first time.

Coco Gauff has reached the U.S. Open quarterfinals for the first time by coming back in each set to beat Zhang Shuai of China 7-5, 7-5 in front of a partisan crowd at Arthur Ashe Stadium.

Rafael Nadal reached 300 career Grand Slam match victories by beating Corentin Moutet 6-3, 6-1, 6-4 in the second round of the French Open at Roland Garros.

Ons Jabeur retired injured in the Sydney Tennis Classic quarterfinals and allowed Anett Kontaveit to reach the semifinals.

United States' Serena Williams makes a backhand return to Australia's Daria Gavrilova during a tuneup tournament ahead of the Australian Open tennis championships in Melbourne, Australia, Monday, Feb. 1, 2021. (AP Photo/Hamish Blair)MELBOURNE – Serena Williams found a silver lining in the delayed start to the Australian Open, the season-opening Grand Slam tournament that is starting three weeks later than usual because of the COVID-19 pandemic. Williams is playing in the Yarra Valley Classic, along with top-ranked Ash Barty and defending Australian Open champion Sofia Kenin. “So I definitely was pushing the limits, but I’m here.”Williams has been stalled on 23 major singles titles since the 2017 Australian Open, when she was two months pregnant with now-3-year-old daughter Olympia. AdFrances Tiafoe, an Australian Open quarterfinalist in 2019, lost to Corentin Moutet 3-6, 6-4, 6-4.