Serena Williams reacts after losing a point to unseeded Italian Roberta Vinci during a semifinal match at the U.S. Open tennis tournament on Friday. Williams went on to lose the match in three sets.
Serena Williams wins the singles match against Garbine Muguruza of Spain after the women's singles final at the All England Lawn Tennis Championships in Wimbledon, London, on Saturday. Williams won 6-4, 6-4.
World No. 1 Serena Williams acknowledges the crowd after winning her match against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden in Indian Wells, Calif.
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Serena Williams reacts after defeating Caroline Wozniacki of Denmark to win their women's singles final match of the 2014 U.S. Open on Sunday. The win was Williams' 18th Grand Slam title.
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Imogen Davis catches Rufus, a Harris hawk, in the stands above Centre Court at Wimbledon. Rufus scares off pigeons who try to eat the ryegrass on the tennis courts.
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Martina Hingis of Switzerland and Sabine Lisicki of Germany celebrate match point during Sunday's final of the Sony Open. The pair won, bringing Hingis her first victory since 2007.
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Stanislas Wawrinka of Switzerland kisses the Australian Open trophy during the awarding ceremony after winning the men's singles final against Spain's Rafael Nadal on Sunday in Melbourne, Australia.
Li Na of China celebrates after defeating Dominika Cibulkova of Slovakia during their women's singles final at the Australian Open tennis championship in Melbourne, Australia, on Saturday.
Novak Djokovic of Serbia wipes the sweat from his face during his quarterfinal loss to Stanislas Wawrinka of Switzerland at the Australian Open tennis championship in Melbourne.