Ryan Harrison of the U.S. plays a forehand shot in his first round match against Nicolas Mahut of France during the Sydney International tennis tournament in Sydney, Australia, Tuesday, Jan. 7, 2014 (AP Photo/Rob Griffith)

Australia Tennis Sydney International

Ryan Harrison of the U.S. plays a forehand shot in his first round match against Nicolas Mahut of France during the Sydney International tennis tournament in Sydney, Australia, Tuesday, Jan. 7, 2014 (AP Photo/Rob Griffith)

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