NEW YORK, NEW YORK - AUGUST 31: Karen Khachanov serves against Roman Andres Burruchaga of Argentina during their Men's Singles First Round match on Day Two of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 31, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK, NEW YORK - AUGUST 31: Karen Khachanov serves against Roman Andres Burruchaga of Argentina during their Men's Singles First Round match on Day Two of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 31, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK, NEW YORK - AUGUST 31: Karen Khachanov serves against Roman Andres Burruchaga of Argentina during their Men's Singles First Round match on Day Two of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 31, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK, NEW YORK - AUGUST 31: Roman Andres Burruchaga of Argentina reacts against Karen Khachanov during their Men's Singles First Round match on Day Two of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 31, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK, NEW YORK - AUGUST 31: Roman Andres Burruchaga of Argentina returns a shot against Karen Khachanov during their Men's Singles First Round match on Day Two of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 31, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK, NEW YORK - AUGUST 31: Roman Andres Burruchaga of Argentina returns a shot against Karen Khachanov during their Men's Singles First Round match on Day Two of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 31, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK, NEW YORK - AUGUST 31: Roman Andres Burruchaga of Argentina returns a shot against Karen Khachanov during their Men's Singles First Round match on Day Two of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 31, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK, NEW YORK - AUGUST 31: Roman Andres Burruchaga of Argentina returns a shot against Karen Khachanov during their Men's Singles First Round match on Day Two of the 2026 US Open at USTA Billie Jean King National Tennis Center on August 31, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)