NEW YORK, NY - SEPTEMBER 04: A general view as Serena Williams of the United States plays against Bethanie Mattek-Sands of the United States during their Women's Singles Third Round match on Day Five of the 2015 US Open at the USTA Billie Jean King National Tennis Center on September 4, 2015 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Streeter Lecka/Getty Images)
