NEW YORK, NEW YORK - AUGUST 31: Carlos Alcaraz of Spain reacts against Roman Safiullin 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 Al Bello/Getty Images)

Russia's Roman Safiullin's hits a return to Spain's Carlos Alcaraz during their men's singles first round tennis match on day two of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York on August 31, 2026. (Photo by KENA BETANCUR / AFP via Getty Images)

NEW YORK, NEW YORK - AUGUST 31: Carlos Alcaraz of Spain serves against Roman Safiullin 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 Patrick Smith/Getty Images)

NEW YORK, NEW YORK - AUGUST 31: Carlos Alcaraz of Spain returns a shot against Roman Safiullin 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 Patrick Smith/Getty Images)

Spain's Carlos Alcaraz serves to Russia's Roman Safiullin during their men's singles first round tennis match on day two of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York on August 31, 2026. (Photo by KENA BETANCUR / AFP via Getty Images)

Spain's Carlos Alcaraz hits a return to Russia's Roman Safiullin during their men's singles first round tennis match on day two of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York on August 31, 2026. (Photo by KENA BETANCUR / AFP via Getty Images)

NEW YORK, NEW YORK - AUGUST 31: Carlos Alcaraz of Spain returns a shot against Roman Safiullin 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 Al Bello/Getty Images)

NEW YORK, NEW YORK - AUGUST 31: Carlos Alcaraz of Spain returns a shot against Roman Safiullin 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 Matthew Stockman/Getty Images)