Third-seeded Juan Martin del Potro beat second-seeded Tomas Berdych 6-3, 6-1 Saturday to reach the ABN Amro World Tennis final.
Del Potro broke his Czech opponent in the opening game before breaking again at 5-3 to take the first set. The second set was one-sided, with the Argentine jumping to a 5-0 lead. Del Potro then lost a game but completed the rout on an ace, his ninth of the match.
Del Potro is making his first Rotterdam appearance. He will play for the title against the winner of the semifinal between Roger Federer and Nikolay Davydenko.