Home Day three matches at the US Open included Serena Williams vs. Carina Witthoeft and Sloane Stephens vs. Angelina Kalinina in Flushing Meadows, NY.<br>(Photo by MediaPunch / BACKGRID) Day three matches at the US Open included Serena Williams vs. Carina Witthoeft and Sloane Stephens vs. Angelina Kalinina in Flushing Meadows, NY.<br>(Photo by MediaPunch / BACKGRID)

Day three matches at the US Open included Serena Williams vs. Carina Witthoeft and Sloane Stephens vs. Angelina Kalinina in Flushing Meadows, NY.
(Photo by MediaPunch / BACKGRID)

Day three matches at the US Open included Serena Williams vs. Carina Witthoeft and Sloane Stephens vs. Angelina Kalinina in Flushing Meadows, NY.<br>(Photo by MediaPunch / BACKGRID)

Day three matches at the US Open included Serena Williams vs. Carina Witthoeft and Sloane Stephens (pictured) vs. Angelina Kalinina in Flushing Meadows, NY.<br>(Photo by MediaPunch / BACKGRID)