Florian Mayer of Germany asks for a video replay as he plays David Ferrer of Spain during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 19, 2014.(AP Photo/Rick Rycroft)

Australian Open Tennis

Florian Mayer of Germany asks for a video replay as he plays David Ferrer of Spain during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 19, 2014.(AP Photo/Rick Rycroft)

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