Zhang Shuai of China prepares to serve to Mona Barthel of Germany 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

Zhang Shuai of China prepares to serve to Mona Barthel of Germany 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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