Sep 7, 2016; New York, NY, USA; Serena Williams of the United States gestures after winning a point against Simona Halep of Romania (not pictured) on day ten of the 2016 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Williams won 6-2, 4-6, 6-3. Mandatory Credit: Geoff Burke-USA TODAY Sports