Alison Riske of the U.S. prepares to serve to Elena Vesnina of Russia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014. (AP Photo/Aijaz Rahi)

Australian Open Tennis

Alison Riske of the U.S. prepares to serve to Elena Vesnina of Russia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014. (AP Photo/Aijaz Rahi)

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