German Tommy Haas eased past Belgium's Olivier Rochus 6-0, 6-2 on Thursday to advance to the semi-finals of the ATP Dubai Open.
The fifth-seeded Haas, who won the Memphis title last week, claimed his 11th straight win, and his 16th victory in 18 matches this season.
Haas was too powerful and Rochus too passive, with disastrous consequences for the Belgian, who had upset world number three Nikolay Davydenko in the second round. Giving up just two points on serve in the first set, Haas won the first nine games.
"It was one of those days today where from the beginning I felt the ball quite well and I moved well from the baseline," said Haas after his 49-minute victory. "I never really gave him the opportunity to play his game.
"That was my game plan, but obviously to be convincing for a long period of time, for two sets, I'm really happy about that."