NEW YORK, NY - AUGUST 31:  Anastasija Sevastova of Lativa celebrates her victory over Garbine Muguruza of Spain during her second round Women's Singles match on Day Three of the 2016 US Open at the USTA Billie Jean King National Tennis Center on August 31, 2016 in the Flushing neighborhood of the Queens borough of New York City.  (Photo by Alex Goodlett/Getty Images)