SHENZHEN, CHINA - SEPTEMBER 27: Karolina Muchova of Czechia celebrates winning a point during match 1 against Anhelina Kalinina of Ukraine in the 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)

SHENZHEN, CHINA - SEPTEMBER 27: Karolina Muchova of Czechia serves during match 1 against Anhelina Kalinina of Ukraine in the 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)

SHENZHEN, CHINA - SEPTEMBER 27: Anhelina Kalinina of Ukraine plays a forehand during match 1 against Karolina Muchova of Czechia in the 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)

SHENZHEN, CHINA - SEPTEMBER 27: Karolina Muchova of Czechia talks to Barbora Strycova, Captain of Czechia on the bench during match 1 against Anhelina Kalinina of Ukraine in the 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)

SHENZHEN, CHINA - SEPTEMBER 27: Anhelina Kalinina of Ukraine serves during match 1 against Karolina Muchova of Czechia in the 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)

SHENZHEN, CHINA - SEPTEMBER 27: Karolina Muchova of Czechia serves during match 1 against Anhelina Kalinina of Ukraine in the 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)

SHENZHEN, CHINA - SEPTEMBER 27: Anhelina Kalinina of Ukraine talks to Illya Marchenko, Captain of Ukraine on the bench during match 1 against Karolina Muchova of Czechia in the 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)

SHENZHEN, CHINA - SEPTEMBER 27: Illya Marchenko, Captain of Ukraine, Elina Svitolina, Anhelina Kalinina, Katarina Zavatska and Lyudmyla Kichenok of Ukraine stand for national anthems before the 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)