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NEW YORK, NEW YORK - AUGUST 31: : Alexander Bublik of Kazakhstan returns shot during his Men's Singles round one match against Kyle Edmund of Great Britain on Day One of the 2020 US Open at the USTA Billie Jean King National Tennis Center on August 31, 2020 in the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)

NEW YORK, NEW YORK - AUGUST 31: : Alexander Bublik of Kazakhstan returns shot during his Men's Singles round one match against Kyle Edmund of Great Britain on Day One of the 2020 US Open at the USTA Billie Jean King National Tennis Center on August 31, 2020 in the Queens borough of New York City.  (Photo by Matthew Stockman/Getty Images)