Serena Williams defeats Maria Jose Martinez Sanchez in second-round action at the U.S. Open in New York

Serena Williams, USA, returns the ball to Maria Jose Martinez Sanchez, Spain, in the first set of second-round action at the 2012 U.S. Open held at the National Tennis Center on August 30, 2012 in New York. Williams won 6-2, 6-4. UPI Photo/Monika Graff