Victoria Azarenka, Angelique Kerber out of Tokyo OlympicsAngelique Kerber and Victoria Azarenka are the latest big name tennis players to opt out of the Tokyo Olympics.
Serena Williams loses at French Open; Federer withdrawsSerena Williams has lost in straight sets in the fourth round of the French Open.
'It's me': Williams urges herself to erase deficit at FrenchEven a 23-time Grand Slam champion needs to remind herself now and then how to play winning tennis.
