Aug 29, 2016; New York, NY, USA; Madison Keys of the United States serves against Allison Riske of the United States (not pictured) on day one of the 2016 U.S. Open tennis tournament at USTA Billie ... more 
Aug 29, 2016; New York, NY, USA; Madison Keys of the United States serves against Allison Riske of the United States (not pictured) on day one of the 2016 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Geoff Burke-USA TODAY Sports less 
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Reuters | Photo By Geoff Burke / Reuters
Tue, Aug 30, 2016 3:45 AM EDT