NEW YORK, NEW YORK - SEPTEMBER 01: Roger Federer of Switzerland returns a shot during his fourth round Men's Singles match against David Goffin of Belgium on day seven of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 01, 2019 in Queens borough of New York City. (Photo by Chaz Niell/Getty Images)
NEW YORK, NEW YORK - AUGUST 29: David Goffin of Belgium returns a shot during his 2nd round day 4 match against Gregoire Barrere of France of the 2019 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2019 in Queens borough of New York City. (Photo by Chaz Niell/Getty Images)
Switzerland's Roger Federer Taylor reacts after a point against Fritz of the US during their men's singles match on day five of the Australian Open tennis tournament in Melbourne on January 18, 2019. (Photo by WILLIAM WEST / AFP) / -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE -- (Photo credit should read WILLIAM WEST/AFP/Getty Images)
NEW YORK, NEW YORK - AUGUST 26: David Goffin of Belgium reacts during his men's singles first round match against Corentin Moutet of France during day one of the 2019 US Open at the USTA Billie Jean King National Tennis Center on August 26, 2019 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Al Bello/Getty Images)
