Tennis - Australian Open - Melbourne Park, Melbourne, Australia - 18/1/17 Switzerland's Stan Wawrinka serves during his Men's singles second round match against Steve Johnson of the U.S. ... more 
Tennis - Australian Open - Melbourne Park, Melbourne, Australia - 18/1/17 Switzerland's Stan Wawrinka serves during his Men's singles second round match against Steve Johnson of the U.S. .REUTERS/Jason Reed less 
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Reuters | Photo By JASON REED / REUTERS
Tue, Jan 17, 2017 11:01 PM EST