Brazilian youngster Endrick scored the only goal on away soil as Carlo Ancelotti’s side took another step towards cup glory.
Endrick enjoyed his best night, while Jude Bellingham put up a stellar performance in midfield as Los Blancos cruised to a 1-0 win in the first leg of their Copa del Rey semi-final with Real Sociedad.
Vinicius Jr could have scored a second goal for Madrid, but was denied from a tight angle.
Madrid never really grabbed control of the game – but they did threaten in certain moments.