Slovakia

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Serena Williams of the U.S. makes a backhand return to Daniela Hantuchova of Slovakia 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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Serena Williams of the U.S. cools down with ice towel on her shoulders between games during her third round match against Daniela Hantuchova of Slovakia at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 17, 2014. (AP Photo/Aaron Favila)

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Serena Williams of the U.S. celebrates after defeating Daniela Hantuchova of Slovakia in 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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Serena Williams of the U.S. serves to Daniela Hantuchova of Slovakia 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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Serena Williams of the U.S. takes a drink during a break in her third round match against Daniela Hantuchova of Slovakia at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 17, 2014.(AP Photo/Aaron Favila)