SHENZHEN, CHINA - SEPTEMBER 24: Jana Otzipka of Belgium interacts with Wim Fissette, Captain of Belgium during match 1 against Anhelina Kalinina of Ukraine in the Billie Jean King Cup by Gainbridge Finals 2026, Quarter-Final match between Ukraine and Belgium at Shenzhen Bay Sports Centre Arena on September 24, 2026 in Shenzhen, China. (Photo by Lintao Zhang/Getty Images for Billie Jean King Cup)

SHENZHEN, CHINA - SEPTEMBER 24: Anhelina Kalinina of Ukraine plays a forehand during match 1 against Jana Otzipka of Belgium in the Billie Jean King Cup by Gainbridge Finals 2026, Quarter-Final match between Ukraine and Belgium at Shenzhen Bay Sports Centre Arena on September 24, 2026 in Shenzhen, China. (Photo by Lintao Zhang/Getty Images for Billie Jean King Cup)

SHENZHEN, CHINA - SEPTEMBER 24: Jana Otzipka of Belgium plays a forehand during match 1 against Anhelina Kalinina of Ukraine in the Billie Jean King Cup by Gainbridge Finals 2026, Quarter-Final match between Ukraine and Belgium at Shenzhen Bay Sports Centre Arena on September 24, 2026 in Shenzhen, China. (Photo by Lintao Zhang/Getty Images for Billie Jean King Cup)

SHENZHEN, CHINA - SEPTEMBER 24: Jana Otzipka of Belgium plays a forehand during match 1 against Anhelina Kalinina of Ukraine in the Billie Jean King Cup by Gainbridge Finals 2026, Quarter-Final match between Ukraine and Belgium at Shenzhen Bay Sports Centre Arena on September 24, 2026 in Shenzhen, China. (Photo by Lintao Zhang/Getty Images for Billie Jean King Cup)

SHENZHEN, CHINA - SEPTEMBER 24: Jana Otzipka of Belgium celebrates winning a point during match 1 against Anhelina Kalinina of Ukraine in the Billie Jean King Cup by Gainbridge Finals 2026, Quarter-Final match between Ukraine and Belgium at Shenzhen Bay Sports Centre Arena on September 24, 2026 in Shenzhen, China. (Photo by Lintao Zhang/Getty Images for Billie Jean King Cup)

SHENZHEN, CHINA - SEPTEMBER 24: Anhelina Kalinina of Ukraine plays a forehand during match 1 against Jana Otzipka of Belgium in the Billie Jean King Cup by Gainbridge Finals 2026, Quarter-Final match between Ukraine and Belgium at Shenzhen Bay Sports Centre Arena on September 24, 2026 in Shenzhen, China. (Photo by Lintao Zhang/Getty Images for Billie Jean King Cup)

SHENZHEN, CHINA - SEPTEMBER 24: Jana Otzipka of Belgium chats with Wim Fissette, Captain of Belgium during match 1 against Anhelina Kalinina of Ukraine in the Billie Jean King Cup by Gainbridge Finals 2026, Quarter-Final match between Ukraine and Belgium at Shenzhen Bay Sports Centre Arena on September 24, 2026 in Shenzhen, China. (Photo by Lintao Zhang/Getty Images for Billie Jean King Cup)

SHENZHEN, CHINA - SEPTEMBER 24: Anhelina Kalinina of Ukraine plays a forehand during match 1 against Jana Otzipka of Belgium in the Billie Jean King Cup by Gainbridge Finals 2026, Quarter-Final match between Ukraine and Belgium at Shenzhen Bay Sports Centre Arena on September 24, 2026 in Shenzhen, China. (Photo by Lintao Zhang/Getty Images for Billie Jean King Cup)