ROTTERDAM, Netherlands: Stan Wawrinka was untouchable on serve in the opening set as the Swiss powered into the semi-finals of the ATP Rotterdam World Tennis event on Friday with a 7-6 (7/3), 6-3 win over Gilles Muller.
Fourth seed Wawrinka will Saturday face second seed Milos Raonic, whose big serve accounted for a mere six aces in a 2-6, 6-3, 6-4 defeat of Ukrainian Sergiy Stakhovsky.
The Canadian winner has lost in all three previous matches to Wawrinka. “It’s a short stay so far in Rotterdam, but I am glad to be in the semi-finals,” said Raonic, making his Dutch debut.
“The most important was to get this win.”
Wawrinka started out on fire in the opening set as he committed one error and fired at 100 percent on first serves on his way to defeating Muller for the second time this season.
Wawrinka matched Muller on serve, with nine apiece; he finished with 21 winners.
“It was a really close first set, but it was a very good match for me,” said Wawrinka, who last played here in 2005. “I’m getting better and better with each match.