Gilles Muller of Luxembourg reached his second semi-final on grass in three weeks at the Nottingham Open on Thursday.

Muller, serving superbly, aced Alexandr Dolgopolov of Ukraine 14 times in a 6-3 6-4 win. He lost only three points off his first serve.

In the short grass season, he has been runner-up in the Netherlands, and a quarterfinalist at Queen’s last week. He’s into the Nottingham semifinals for the third time.

The eighth-seeded Muller will play second-seeded Pablo Cuevas, who was into his first ATP semifinal on grass. The Argentine came to Nottingham with two career wins on grass and has won three in a row this week.

Cuevas saved a match point and beat Marcos Baghdatis of Cyprus only on his fifth match point to prevail 6-4 4-6 7-6 (10-8).

Cuevas saved a match point serving at 4-5 in the third set. In the tiebreaker, Baghdatis led 4-0, Cuevas pulled ahead 6-4, and couldn’t finish it off until it was 9-8.