Petra Kvitova suffered a "severe" left hand injury after being attacked by a knife-wielding burglar at her home in the eastern Czech Republic town of Prostejov.
Serena Williams says comments by the head of the Russian Tennis Federation referring to her and older sister Venus as "brothers" were bullying, sexist and racist, and that she supported the one-year suspension imposed by the WTA against the official.
Maria Sharapova and Novak Djokovic earned titles Sunday at the China Open.
Maria Sharapova was knocked out of the Wuhan Open by Swiss qualifier Timea Bacsinszky 7-6 (3), 7-5 in the third round on Wednesday.
Wimbledon champion Petra Kvitova is out in the third round of the US Open.
Maria Sharapova reached the US Open's fourth round by taking five of the last six games after her opponent, Sabine Lisicki, was warned by the chair umpire about receiving coaching help.
