Bastad - Defending champion Carlos Berlocq upset top-seeded David Ferrer in a 6-3, 6-3 victory at the Swedish Open quarter-finals on Friday.
The 31-year-old Argentine, who won his first ATP world tour in Bastad last year, defeated Ferrer in 85 minutes.
Third-seeded Fernando Verdasco reached the semi-finals with a 7-5, 6-3 victory over fellow Spaniard Pablo Carreno Busta.
On Saturday, the 30-year-old Verdasco faces 111th-ranked Pablo Cuevas of Uruguay, who beat Reno Olivo of Argentina 6-2, 6-4.
In the other semi-final, Berlocq faces fifth-seeded Joao Sousa of Portugal, who ousted Serbian Dusan Lajovic 6-4, 6-4.
Results from the ATP Swedish Open on Friday (x denotes seeding):
Carlos Berlocq (ARG x7) bt David Ferrer (ESP x1) 6-3, 6-3
Joo Sousa (POR x5) bt Dusan Lajovic (SRB) 6-4, 6-4
Fernando Verdasco (ESP x3) bt Pablo Carreo-Busta (ESP x8) 7-5, 6-3
Pablo Cuevas (URU) bt Renzo Olivo (ARG) 6-2, 6-4