FORMER Celtic loan star John Guidetti was on target as Celta Vigo humbled Barcelona 4-1 last night.
The Swede came on as a 77th minute substitute for two-goal Aspas and netted the fourth goal five minutes later to topple Messi and Co from the top of La Liga.
Guidetti, who quit the Hoops at the end of last season when his loan period from Manchester City expired, made the most of a Pique error to kill off any hopes of a late fightback by Barca.
The centre-half failed to cut out a cross from the right and Guidetti swooped to take a touch before lashing the ball past the helpless Ter Stergen.
A shock was on the cards when the home side took the lead through Nolito in the 26th minute.
Aspas, who flopped at Liverpool, lobbed in a second four minutes later to embarrass a top-strength Nou Camp outfit with Neymar and Suarez up front alongside Messi.
And Aspas claimed No.3 in the 56th minute when he raced through the defence onto a Nolito pass before slotting wide of the keeper.
Neymar threw Barca a lifeline when he swept in a wonderful through ball from Messi in the 80th minute before Guidetti struck to end the game as a contest.
It’s the third time this season the European champions have conceded four goals in a game.