Yen-Hsun Lu Pictures

  • NEW YORK, NY - AUGUST 30: Yen-Hsun Lu of Taipei serves to Ivo Karlovic of Croatia during his first round Men'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 Alex Goodlett/Getty Images)