NEW YORK, NEW YORK - AUGUST 31: Stan Wawrinka of Switzerland serves against Matteo Berrettini of Italy 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)

Switzerland's Stan Wawrinka serves to Italy's Matteo Berrettini in 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 City on August 31, 2026. (Photo by KENA BETANCUR / AFP via Getty Images)

Spain's Carlos Alcaraz speaks after defeating Russia's Roman Safiullin in 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 speaks after defeating Russia's Roman Safiullin in 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 reacts after defeating Russia's Roman Safiullin in 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)

Rayo Vallecano's Spanish forward #21 Fran Perez and Barcelona's German forward #14 Karim Adeyemi vie for the ball during the Spanish league football match between FC Barcelona and Rayo Vallecano de Madrid at Camp Nou Stadium in Barcelona on August 31, 2026. (Photo by Lluis GENE / AFP via Getty Images)

Barcelona's German coach Hans-Dieter Flick reacts during the Spanish league football match between FC Barcelona and Rayo Vallecano de Madrid at Camp Nou Stadium in Barcelona on August 31, 2026. (Photo by Lluis GENE / AFP via Getty Images)

Barcelona's German forward #14 Karim Adeyemi checks on Barcelona's Spanish midfielder #07 Fermin Lopez during the Spanish league football match between FC Barcelona and Rayo Vallecano de Madrid at Camp Nou Stadium in Barcelona on August 31, 2026. (Photo by Lluis GENE / AFP via Getty Images)