Barcelona star Lionel Messi insists defeat to Real Sociedad will only be a blip.

Real shocked Barca 3-2 last night at the Anoeta.

"We have to pick ourselves up because we have a Cup match," said Messi.

"Losing a game had to come at some point.

"It's always more difficult when you're down a man and our accuracy in front of goal wasn't good."