NEW YORK NEW YORK - AUGUST 30: Mariano Navone of Argentina celebrates winning a set against Novak Djokovic of Serbia during their Men's Singles First Round match on Day One of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 30, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK NEW YORK - AUGUST 30: Gael Monfils, husband of Elina Svitolina of Ukraine, looks on during Svitolina's Singles First Round match against Solana Sierra of Argentina on Day One of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 30, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)

NEW YORK NEW YORK - AUGUST 30: Novak Djokovic of Serbia serves against Mariano Navone of Argentina during their Men's Singles First Round match on Day One of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 30, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Julian Finney/Getty Images)

NEW YORK NEW YORK - AUGUST 30: Elina Svitolina of Ukraine returns against Solana Sierra of Argentina during their Women's Singles First Round match on Day One of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 30, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)

NEW YORK NEW YORK - AUGUST 30: Rain falls on the court between Singles First Round matches on Day One of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 30, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)

NEW YORK NEW YORK - AUGUST 30: Elina Svitolina of Ukraine serves against Solana Sierra of Argentina during their Women's Singles First Round match on Day One of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 30, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)

NEW YORK NEW YORK - AUGUST 30: Elina Svitolina of Ukraine serves against Solana Sierra of Argentina during their Women's Singles First Round match on Day One of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 30, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)

NEW YORK NEW YORK - AUGUST 30: Elina Svitolina of Ukraine returns against Solana Sierra of Argentina during their Women's Singles First Round match on Day One of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 30, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)