Team of Russia celebrates after winning their Billie Jean King Cup final tennis match against Switzerland in Prague, Czech Republic, Saturday, Nov. 6, 2021. (AP Photo/Petr David Josek)

Team of Russia celebrates after winning their Billie Jean King Cup final tennis match against Switzerland in Prague, Czech Republic, Saturday, Nov. 6, 2021. (AP Photo/Petr David Josek)

Team of Russia celebrates after winning their Billie Jean King Cup final tennis match against Switzerland in Prague, Czech Republic, Saturday, Nov. 6, 2021. (AP Photo/Petr David Josek)

Switzerland's Belinda Bencic, center, Jil Teichmann, right, and the team's captain Heinz Guenthardt after loosing their Billie Jean King Cup final tennis match against Russia in Prague, Czech Republic, Saturday, Nov. 6, 2021. (AP Photo/Petr David Josek)