Barcelona have a good record against sociedad so they are more favored against sociedad later, although in the previous match barcelona failed to get full points but I think that will actually motivate them today, Lewandowski and Rapinha seem to be Xavi mainstay from the first minute and in the last week practice of course Xavi has been able to create cohesiveness between Lewandowski and Rapinha thus creating a strong chemistry between the two.
Judging from the formation that Barcelona did with their 4-3-3, I think this will be an open game, but if you look at Sociedad, they are actually still quite good by placing 3 midfielders and 1 player as a second striker to support Kubo and Isak in attack.
Kick Off starts in a few minutes now, looks like it's going to be a pretty good thing to see and Barcelona have to win for sure.