Alexis Sanchez struck after six minutes and Cesc Fabregas added a second following the break to leave Barca with a 100 per cent record from their opening two games. 
Sergio Busquets was sent off with two minutes to go after a clash with Maxi Pereira.
Now Tito Vilanova’s men turn their attention to the small matter of the El Clasico on Sunday against Real Madrid — but they will be without Carles Puyol, who dislocated an elbow after falling heavily on his arm. 
Puyol is expected to miss around eight weeks of action.