Two clangers from Real Sociedad goalkeeper Geronimo Rulli helped Barcelona overcame an awful first half to beat Real Sociedad 2-1.
Luis Suarez, who got the first goal in Barcelona's comeback said: 'You win the league with these types of performances. It was the same last season here when we went behind but came back to win the game.'
If winning the title is all about taking three points when the team is below par this was certainly an example of that. Real Sociedad will wonder how they managed to take nothing from this match.
BARCELONA XI: Ter Stegen, Semedo, Pique, Rakitic, Suarez, Messi, Dembele, Rafinha, Jordi Alba, Roberto, Umtiti
GOALS: Suarez, Dembele
SOCIEDAD XI: Gero Rulli, Zladua, Illarra, Zubeidia, Moreno, Juanmi, Oyarzabal, Pardo, Aritz, Zurutuza, Theo
Barcelona fell behind when Aritz Elustondo drove home after Hector Moreno had beaten Nelson Semedo in the air to nod down a free-kick. Three sides of Anoeta errupted including the goal that Real Sociedad were kicking into.
Behind the other goal the club are still completing building work that has seen them finally eliminate the running track around the pitch. With the supporters closer to the players the atmosphere was good and the home team were suitably buoyed. Barcelona, meanwhile, were awful.
Lionel Messi made 31 touches in the first half but none of them were in the Real Sociedad penalty area. Suarez chased down defenders but team-mates rarely joined him in the press as the champions looked to have not come back from the international break.
Philippe Coutinho replaced Rafinha at half time but things got no better at the restart. Pique put the ball straight out for a corner when he was trying to pass it back to Marc Andre ter Stegen.
Busquets had to come on ten minutes into the second half when there was still no improvement. Lionel Messi crossed but Dembele headed tamely wide on the hour to sum up Barcelona's lack of effectiveness in front of goal.
Real Sociedad then had three superb chances to double their lead and they wasted them all. The first chance to score fell to Mikel Oyarzabal who raced clear but could not finish past Marc Andre ter Stegen.
With their next attack it was Theo Hernandez who sprinted away from his left back position. He looked offside but the flag stayed down. He wasted the chance shooting straight at Ter Stegen when he was one-on-one with the goalkeeper.
And then Ter Stegen pulled off the third goal-saving save from Juanmi Jiménez.
No team can expect to waste so many chances and still come away with something and predictably Barcelona scored from their next attack.
Gerard Pique headed a corner back across the face of the Real Sociedad goal and with keeper Rulli flapping at the ball under pressure from Ousmane Dembele, Suarez was able to convert into an empty net.
The 1-1 scoreline soon became 2-1 to Barcelona and again Rulli was at fault as the visitors took the lead. Again he came for a high ball and punched instead of catching it.
The ball went straight out to Dembele and with the keeper now grounded and the goal unmanned, the French winger drilled the ball back towards the goal, and taking touches off of Igor Zubeldia and Ruben Pardo it found its way into the back of the net.
Still the chances came for Real Sociedad and still they managed to miss them. Former Southampton forward Juanmi missed another opportunity with a header that went wide doing an injustice to Mikel Merino's superb pass to send him clear.
Real Sociedad had the chances to win this game twice over but they had failed to get the better of Ter Stegen and with Rulli less than assured at the other end it was Barcelona who took all three points.