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. Xu Yanyan/Xinhua/Landov hide caption

itoggle caption Xu Yanyan/Xinhua/Landov

Rafael Nadal of Spain celebrates after defeating Roger Federer of Switzerland during their semifinal Friday at the Australian Open tennis championship in Melbourne. Aaron Favila/AP hide caption

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Steve Darcis of Belgium, left, shakes hands with Rafael Nadal of Spain Monday, after winning their first-round match at the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club. Mike Hewitt/Getty Images hide caption

itoggle caption Mike Hewitt/Getty Images