Prague, Nov 6 (AFP/APP):Daria Kasatkina and Liudmila Samsonova led Russia to victory in the maiden Billie Jean King Cup after winning their singles matches against Switzerland in Prague on Saturday. Kasatkina beat Jil Teichmann 6-2, 6-4 and Samsonova overpowered Olympic champion Belinda Bencic 3-6, 6-3, […]