Enrique salutes solidity in defence
Neymar scored the game’s only goal, from the penalty spot on 21 minutes, after drawing a foul from right-back Aritz Elustondo.
Barcelona have traditionally struggled at the San Sebastian venue, and have not won there since 2007, but can now welcome La Real to the Camp Nou with a slight advantage.
After the match, Enrique said: “That was the first step towards the semis.
“But we know that the second part of the tie has yet to come.
“However, this win was especially encouraging because it came at a ground that has traditionally been so difficult for us.
“The team worked really hard, with effort, attitude and concentration at all times. I’d highlight the solidity in defence of the whole team.
“We managed to keep almost all of the football in their half and that meant that our virtues shone through rather than those of Real.
“For the second leg, this result is going to force them to come at us and try to score. That will make for a really attractive game.”
Next up for Barcelona though is a trip to face Eibar at the Estadio Municipal de Ipurua on Sunday.