Defending champion Czech Republic reached its second successive Davis Cup final on Saturday while Canada eyed a first appearance in November's title match.

Radek Stepanek and Tomas Berdych led the Czechs to a third final in five years after breezing past Argentina's Carlos Berlocq and Horacio Zeballos in Saturday's doubles 6-3, 6-4, 6-2.

"It's pure fantasy; the guys played at a hundred percent again," Czech captain Jaroslav Navratil said after his side took a 3-0 lead in Prague. "They didn't give the Argentinians a chance."