Vasek Pospisil of Canada  signs his autographs for fans after beating Samuel Groth of Australia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014. (AP Photo/Aaron Favila)

Australian Open Tennis

Vasek Pospisil of Canada signs his autographs for fans after beating Samuel Groth of Australia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014. (AP Photo/Aaron Favila)

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