Ryan Harrison of the U.S. gestures after defeating Stephane Robert of France during their men's singles match at the Sydney International tennis tournament in Sydney, Australia, Sunday, Jan. 5, 2014.  (AP Photo/Daniel Munoz)

Australia Tennis Sydney International

Ryan Harrison of the U.S. gestures after defeating Stephane Robert of France during their men's singles match at the Sydney International tennis tournament in Sydney, Australia, Sunday, Jan. 5, 2014. (AP Photo/Daniel Munoz)

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