Ousmane Dembele scored the winning goal, as Barcelona started their 2018/2019 season with victory in the Spanish Super Cup on Sunday.
The LaLiga champions went behind, after Pablo Sarabia curled his effort past Marc-Andre ter Stegen in the 9th minute.
The goal was awarded once VAR had overruled an initial offside decision.
Barcelona levelled a minute before the break, when Gerard Pique turned in the rebound after Lionel Messi’s free-kick hit a post.
Both sides looked capable of finding a winner in the second half, but Dembele’s thumping drive won it with 12 minutes left.
But there was time for Wissam Ben Yedder’s penalty to be saved by Ter Stegen.