NEW YORK, NY - AUGUST 30: Jessica Pegula of the United States serves to Agnieszka Radwanska of Poland during her first round Women's Singles match on Day Two of the 2016 US Open at the USTA Billie Jean King National Tennis Center on August 30, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)
