NEW YORK, NEW YORK - AUGUST 28: Roger Federer of Switzerland in between points against Damir Dzumhur of Bosnia during their day 3 Men's Singles match of the 2019 US Open at the USTA Billie Jean King Tennis Center on August 28, 2019 in Queens borough of New York City. (Photo by Chaz Niell/Getty Images)
NEW YORK, NEW YORK - AUGUST 28: Roger Federer of Switzerland returns a shot during his Men's Singles second round match against Damir Dzumhur of Bosnia and Herzegovina on day three of the 2019 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2019 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)
NEW YORK, NEW YORK - AUGUST 28: Roger Federer of Switzerland prior to his Men's Singles second round match against Damir Dzumhur of Bosnia and Herzegovina on day three of the 2019 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2019 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)
