Maria Sharapova of Russia reaches for a shot to Dominika Cibulkova of Slovakia during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 20, 2014.(AP Photo/Eugene Hoshiko)

Australian Open Tennis

Maria Sharapova of Russia reaches for a shot to Dominika Cibulkova of Slovakia during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 20, 2014.(AP Photo/Eugene Hoshiko)

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