NEW YORK, NEW YORK – SEPTEMBER 07: Daniil Medvedev of Russia celebrates match point against Botic van de Zandschulp of Netherlands during his Men’s Singles quarterfinals match on Day Nine of the 2021 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2021 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Al Bello/Getty Images)