Flavia Pennetta of Italy serves to Mona Barthel of Germany during their third round match at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 17, 2014.(AP Photo/Eugene Hoshiko)

Australian Open Tennis

Flavia Pennetta of Italy serves to Mona Barthel of Germany during their third round match at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 17, 2014.(AP Photo/Eugene Hoshiko)

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