Ana Ivanovic of Serbia celebrates,as she won the second set against  Samantha Stosur of Australia during their third round match at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 17, 2014.(AP Photo/Aaron Favila)

Australian Open Tennis

Ana Ivanovic of Serbia celebrates,as she won the second set against Samantha Stosur of Australia during their third round match at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 17, 2014.(AP Photo/Aaron Favila)

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