The home side had the better chances in the first period, but not could break the deadlock in Catalonia.
It was a similiar story in the second half, but Neymar won it for the home side late on with a brace.
Read how it all unfolded in Sports Mole's minute-by-minute live commentary of the action below.
BARCA: Bravo; Montoya, Mathieu, Mascherano, Alba; Busquets, Rakitic, Iniesta; Munir, Messi, Pedro
BILBAO: Iraizoz; De Marcos, Laporte, Gurpegi, Balenziaga; Iturraspe, Rico, Benat; Susaeta, Muniain, Aduriz