David Nalbandian of Argentina defeated Bulgaria's Grigor Dimitrov 6-4, 6-4 Saturday to reach the Queen's Club final where he will face Marin Cilic of Croatia.
Sixth-seeded Cilic had earlier beaten American Sam Querrey 6-3, 3-6, 6-3.
Playing in windy conditions, the American failed to win any of the nine break points in the 20-minute third game and was broken at love to leave Cilic serving for the opening set at 5-3.
After an early exchange of breaks in the second set, Querrey broke his Croatian opponent to lead 5-3 with a backhand volley and served out the set.
Cilic broke to lead 2-0 in the final set after Querrey stumbled to give his opponent break point and then double-faulted.
Querrey recovered the break at 4-2 but gave up his serve again in the next game by netting a backhand.
''It's tough to play out there and it's just a few points here and there,'' said Querrey, who won the title in 2010.
''But that's my first semifinal in over a year and that feels really good. I'm heading to Eastbourne next week and feeling confident and look forward to it.''
Querrey faces a first-round showdown with fellow American Andy Roddick at Eastbourne.
Nalbandian will be looking for his first title since winning in Washington nearly two years ago.
After two early breaks of serve each, Nalbandian broke Dimitrov a third time to lead 4-3 when the Bulgarian netted a forehand.
In the second set, another forehand error gave Nalbandian a break to lead 2-1, and although Dimitrov leveled at 3-3 a forehand volley earned Nalbandian a decisive break to lead 5-4.
''The conditions were very, very tough,'' said Nalbandian. ''So windy, it was tough to play and there were a lot of mistakes, but happy to win.''
