NEW YORK, NEW YORK - SEPTEMBER 04: Jannik Sinner of Italy returns against Gael Monfils of France during his Men's Singles third round match on Day Six of the 2021 US Open at the USTA Billie Jean King National Tennis Center on September 04, 2021 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Sarah Stier/Getty Images)
