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NEW YORK, NEW YORK - AUGUST 26: Sumit Nagal of India returns a shot against Roger Federer of Switzerland during their Men's Singles first round match on 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 Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - AUGUST 26: Sumit Nagal of India returns a shot against Roger Federer of Switzerland during their Men's Singles first round match on 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 Clive Brunskill/Getty Images)