Russia's Liudmila Samsonova returns a ball to Switzerland's Belinda Bencic during their Billie Jean King Cup final tennis match in Prague, Czech Republic, Saturday, Nov. 6, 2021. (AP Photo/Petr David Josek)

Russia's Liudmila Samsonova celebrates after defeating Switzerland's Belinda Bencic their Billie Jean King Cup final tennis match in Prague, Czech Republic, Saturday, Nov. 6, 2021. (AP Photo/Petr David Josek)

Russia's Liudmila Samsonova, right, celebrates with teammates after winning their Billie Jean King Cup final tennis match against Russia in Prague, Czech Republic, Saturday, Nov. 6, 2021. (AP Photo/Petr David Josek)

Switzerland's Belinda Bencic reacts after loosing a point to Russia's Liudmila Samsonova during their Billie Jean King Cup final tennis match in Prague, Czech Republic, Saturday, Nov. 6, 2021. (AP Photo/Petr David Josek)

Russia's Liudmila Samsonova celebrates after winning a point against Switzerland's Belinda Bencic during their Billie Jean King Cup final tennis match in Prague, Czech Republic, Saturday, Nov. 6, 2021. (AP Photo/Petr David Josek)

Switzerland's Belinda Bencic returns a ball to Russia's Liudmila Samsonova during their Billie Jean King Cup final tennis match in Prague, Czech Republic, Saturday, Nov. 6, 2021. (AP Photo/Petr David Josek)

Switzerland's Belinda Bencic serves to Russia's Liudmila Samsonova during their Billie Jean King Cup final tennis match in Prague, Czech Republic, Saturday, Nov. 6, 2021. (AP Photo/Petr David Josek)