Barcelona were thumped on Wednesday as they crashed to a shock 4-1 defeat at Celta Vigo.

The treble-winners fell behind in the 26th minute when ex-Barca man Nolito notched his fifth goal of the campaign with a superb curling effort from the side of the box.

He then turned provider in the 30th, taking advantage of a Gerard Pique mistake by nodding the ball on to Iago Aspas, who burst forward before coolly chipping over Marc-Andre ter Stegen.

The Celta pair combined again for the third on 56 minutes, Nolito once more helping the ball on as the hosts broke away and Aspas keeping calm when clean through to beat Ter Stegen.

And after Neymar pulled an 80th-minute goal back, substitute John Guidetti clipped in three minutes later as unbeaten Celta wrapped up another triumph over their former boss Luis Enrique - his worst league defeat in charge of Barca - to add to the win they registered at the Nou Camp last term.

"This game goes to show just how difficult La Liga is," Barca coach Luis Enrique said. “What decided this game is how well Celta played. It was highly effective football from them. It was very good."