SHENZHEN, CHINA - SEPTEMBER 27: Karolina Muchova of Czechia signs autographs for fans after winningthe Billie Jean King Cup by Gainbridge Finals 2026, Final match between Ukraine and Czechia at Shenzhen Bay Sports Centre Arena on September 27, 2026 in Shenzhen, China. (Photo by Lintao Zhang/Getty Images for Billie Jean King Cup)