Mackenzie McDonald Pictures
NEW YORK, NEW YORK - SEPTEMBER 01: Mackenzie McDonald of the United States returns the ball during his Men's Singles first round match against Casper Ruud of Norway on Day Two of the 2020 US Open at the USTA Billie Jean King National Tennis Center on September 1, 2020 in the Queens borough of New York City. (Photo by Al Bello/Getty Images)