Pierre-Emerick Aubameyang was on target again as Barcelona scored an important 1-0 victory over top-four rivals Real Sociedad in LaLiga on Thursday. 

A close-range header in the first half was Aubameyang's 11th goal in his past 14 games for Barca – as many as he scored in his 34 prior outings in all competitions. 

It proved to be enough to end La Real's seven-game unbeaten league run at Reale Arena, with Alexander Isak and Alexander Sorloth wasting the opportunities that came their way. 

Barca moved up to second while La Real were left six points adrift of fourth-placed Atletico Madrid with five games to play, casting doubt on their credentials for achieving Champions League qualification. 

La Real conceded their first goal at home in eight league matches in the 11th minute. Gavi kept the ball alive after Ousmane Dembele hit the post and picked out Ferran Torres, who lifted a cross for Aubameyang to nod home. 

Frenkie de Jong, Torres and Aubameyang all narrowly missed the target before Isak miscued when presented with a glorious chance to equalize on the stroke of half-time. 

Barca were again let off the hook within two minutes of the restart when Sorloth blazed over from inside the six-yard box after a wonderful delivery from Adnan Januzaj. 

There was a brief interruption due to objects being thrown in the direction of Gerard Pique from the stands, with the center-back the subject of their ire after controversial audio clips of him negotiating a deal to move the Supercopa de Espana to Saudi Arabia were released. 

Pique played on after appearing to request a substitution in the first half but Barca lost Ronald Araujo to a knee injury in the 55th minute. 

Sorloth and Januzaj were kept at bay by Marc-Andre ter Stegen and Gavi missed a chance to put the game to bed, but Xavi's team were able to hold on for an important three points. 

What does it mean? Barca is back on track 

Barca followed Europa League elimination at the hands of Eintracht Frankfurt with a loss to Cadiz last weekend, but they got back to winning ways in San Sebastian. 

The Blaugrana are now undefeated in 12 LaLiga matches against La Real, while coach Imanol Alguacil has now faced them eight times without recording a win – he has not overseen more games without winning against any other opponent in the competition. 

De Jong pulls the strings

Barca's best moments came when they attacked at pace, and De Jong was key to ensuring they moved the ball quickly. No one on the pitch had more than his three key passes, while he also had the joint-most attempts on goal for the Blaugrana. 

One mix-up proves costly 

Joseba Zaldua and Mikel Merino were well-positioned to clear the ball after Dembele hit the post, but they hesitated and Gavi nipped in and fed Torres for the assist on the only goal of the game. 

What's next? 

Barca entertains Rayo Vallecano on Sunday, with La Real not in action until a meeting with the same side a week later.