MADRID: Alaves is back in the Copa del Rey semi-finals after 13 years, advancing 2-0 on aggregate against second-division club Alcorcon after a scoreless home draw on Tuesday.

It is the fifth time Alaves has made it to the last four, but the first since its surprising run as a second-tier club in the 2003-04 season, when it was eliminated by eventual champion Real Zaragoza. It has never reached the final.

Alcorcon, making its debut in the quarter-finals, pressured from the start at Alaves' Mendizorroza Stadium but couldn't find the net to reverse the 2-0 home loss from last week.

Real Madrid on Wednesday will attempt to overcome a 2-1 home loss to Celta Vigo, while Atletico Madrid will defend a 3-0 home win against Eibar.

On Thursday, two-time defending champion Barcelona hosts Real Sociedad after a 1-0 away win.