PRAGUE, Sept. 14 (Xinhua) -- Czech Republic has secured its place in the Davis Cup final after Tomas Berdych and Radek Stepanek won their doubles match on Saturday to give the defending champion an unbeatable 3-0 lead over Argentina in the semifinals.

Berdych and Stepanek defeated Carlos Berlocq and Horacio Zeballos 6-3, 6-4, 6-2.

Stepanek and Berdych won their opening singles matches on Friday.