NEW YORK, NEW YORK - AUGUST 26: Karolina Muchova of Czechia and Jakub Mensik of Czechia celebrate after defeating Mirra Andreeva and Andrey Rublev in the Mixed Doubles Semifinal of the US Open at USTA Billie Jean King National Tennis Center on August 26, 2026 in New York City. (Photo by Sarah Stier/Getty Images)