Barcelona boss Luis Enrique has insisted that his side "deserved more" from their 1-0 defeat to Real Sociedad on Sunday.
Jordi Alba turned a Sergio Canales cross into his own net after just two minutes to hand the hosts all three points.
However, Enrique believes that it was "an unfair result" and has criticised the Basque side for their tactics.
"It's difficult to attack against a team that parks the bus and La Real closed up more than normal after they went up 1-0," he told reporters.
"I had the feeling that things would be difficult after seeing how we started the game. I only remember the play in which we scored them a goal and dominated.
"We didn't have many chances on goal. This is an unfair result. I think we deserved more. We didn't have the luck or accuracy at the time, to score."
Barcelona have lost on four of their last five trips to the Anoeta.