Ivan Dodig beat Italian eighth seed Fabio Fognini to reach the last-four of the AEGON International at Eastbourne.
The unseeded Croatian triumphed 6-3 6-2 thanks to a clinical serving display as he played in his third career grass quarter-final.
Dodig, who had beat top seed Milos Raonic in the last round, will next face unseeded Spanish ace Feliciano Lopez.
The Wimbledon quarter-finalist beat good friend and compatriot Fernando Verdasco 6-4 7-6 (8-6) with Verdasco complaining of a slick court. His pleas to halt the match on safety conditions went unanswered by officials.
2011 champion and seventh seed Andreas Seppi reached his third straight semi-final here, beating Radek Stepanek 6-4, 6-2.
He will take on second seed Giles Simon in the last four after the Frenchman beat Bernard Tomic 7-6 (10-8) 6-3 to progress.