Philipp Kohlschreiber Pictures

  • NEW YORK, NY - SEPTEMBER 01: Philipp Kohlschreiber of Germany shakes hands with Alexander Zverev of Germany following their men's singles third round match on Day Six of the 2018 US Open at the USTA Billie Jean King National Tennis Center on September 1, 2018 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Al Bello/Getty Images)