BELGRADE, Serbia, Sept. 13 (UPI) -- Wins by Tomas Berdych and Radek Stepanek boosted the Czech Republic to a 2-0 lead in the best-of-five Davis Cup semifinals against Argentina.
Stepanek started the series with a 7-6 (7-3), 6-3, 6-2 win over Juan Monaco and Berdych followed with a 6-4, 4-6, 6-3, 6-4 victory over Leonardo Mayer.