NEW YORK, NEW YORK - SEPTEMBER 07: Tsvetana Pironkova of Bulgaria returns the ball during her Women's Singles fourth round match against Alizé Cornet of France on Day Eight of the 2020 US Open at the USTA Billie Jean King National Tennis Center on September 7, 2020 in the Queens borough of New York City. (Photo by Al Bello/Getty Images)
