LONDON: In the Queen's final, defending champion Matteo Berrettini will face surprise finalist Filip Krajinovic.
Berrettini of Italy defeated Botic van de Zandschulp of the Netherlands 6-4 6-3 following a rainy morning.
Serbia's Krajinovic then defeated Croatia's Marin Cilic, who had never won an ATP main draw match on grass before this week, 6-3 6-3.
The Birmingham Classic was further interrupted by the rain, with both women's semi-finals being rescheduled until Sunday.
Both matches will be broadcast live on the BBC Red Button and the BBC Sport website and app, with Simona Halep facing Beatriz Haddad Maia and Sorana Cirstea facing Zhang Shuai.
The Queen's final will take place on Sunday at 13:00 BST.
For world number 47 Krajinovic, it will be his seventh ATP final, after a long Cilic backhand clinched his place in the final.
In four main-draw appearances at Wimbledon, he has never advanced past the first round.
Krajinovic saved five break points in his opening service game in the second set before securing an ultimately decisive break of his own, after clinching the first set on a net cord.