Real Madrid squeezed past Espanyol 1-0 in the first leg of their Copa del Rey tie at Estadi Cornella-El Prat.
Karim Benzema scored his 14th goal of the season after 25 minutes when he reacted quickest from Gareth Bale's flick-on to nod home.
Cristiano Ronaldo went close with a 30-yard strike before Sergio Garcia nearly grabbed an equaliser after the restart.
Madrid hammered at the Espanyol door in the second period, but they found Kiko Casilla in inspired form.
The keeper denied Ronaldo, Alvaro Arbeloa and Angel di Maria before Iker Casillas made an important save down the other end towards the end of the game from Jhon Cordoba.
