Mona Barthel of Germany serves during their second round match against  Luksika Kumkhum of Thailand at the Australian Open tennis championship in Melbourne, Australia, Wednesday, Jan. 15, 2014. (AP Photo/Shuji Kajiyama)

Australian Open Tennis

Mona Barthel of Germany serves during their second round match against Luksika Kumkhum of Thailand at the Australian Open tennis championship in Melbourne, Australia, Wednesday, Jan. 15, 2014. (AP Photo/Shuji Kajiyama)

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