Full-time and Barcelona come away with all three points here. Real Sociedad took a two-goal lead with goals from Willian Jose and Juanmi, but Paulinho, Luis Suarez (2) and Messi turned it around.
Goal! Luis Suarez! There it is and it's a stunner. Messi finds the striker on the left and he feeds the ball for Suarez to curl the ball over Rulli and into the top far corner.
49'
Messi goes around Rulli and gets to the byline but the keeper gets back up to block for a corner.
47'
Canales tests Ter Stegen from distance but the keeper saves comfortably.
46'
We're back underway!
45'
The players are back out for the second half. Can Barcelona turn this around to maintain their unbeaten run this season?
45'
The first half comes to an end and Real Sociedad are in front. Willian Jose and Juanmi gave the hosts a two-goal lead and Paulinho cut the difference in half.
43'
This has to be one of the worst first halves Valverde's side have had all season. Despite Sociedad's efforts, they have still managed to stay in this.
Goal! Juanmi! Real Sociedad have their second and they are somewhat lucky. Canales plays a superb ball for Juanmi and the striker's touch lets him down but his finish deflects off Sergi Roberto and into the back of the net.
33'
The hosts are well on top here with some good passing going on. In fairness, they should be two goals up as there didn't seem to be anything wrong with Jose's second goal.
30'
Canales with a testing effort for Ter Stegen to push away.
29'
Sociedad almost put the ball in their own net, Illarremendi dragging the ball wide. Corner to Barca.
28'
Goal disallowed! Jose's deflected shot hits the back of the net but it's not allowed as the whistle had blown for a foul from either Jose himself or Zurutuza.
22'
Following the goal, Real Sociedad have looked increasingly comfortable on the pitch. Barcelona have a tough task in Anoeta tonight.
19'
Canales is found in the box and his effort is blocked for a corner.
18'
Barcelona looking to respond but the home side remain firm in defence. Jose is also causing trouble for the defenders.
14'
Barcelona break in numbers and the ball is worked to Paulinho but his shot from inside the area is blocked. Good defending.
Good evening and welcome to live coverage of Barcelona's trip to Real Sociedad. The La Liga leaders have the chance to extend their lead at the top of the table.