Real Sociedad vs Barcelona (Double Chance) prediction

For any team is a privilege to play against mighty Barcelona and doesn't matter what competition is, every team will try to get a good results against it. Barcelona qualified in this stage after a double leg against Ath Bilbao. In the first leg Barcelona lost on Estadio San Mamés (Bilbao) with 2-1 scorers: Aduriz and Williams for Bilbao and Messi for Bacelona. In the second leg Enrique send his best 11 and won the match with 3-1 scorers: Messi, Neymar and Suarez for Barca and Saborit for Bilbao. Real Sociedad qualified in this stage after a double leg against Villarreal. In the first leg Real Sociedad won home with 3-1 scorers: Willian, Vela and Oyarzabal for Sociedad and Trigueros for Villarreal. In the second leg Villarreal struggled to turn the result but they got just a 1-1 on Estadio de la Ceramica scorers: Soriano for Villarreal and Oyarzabal for Sociedad. At this moment Villarreal has more points than Ath Bilbao and we couldn't say that Barcelona had a stronger opponent. It's just that Real Sociedad made very good matches on home, expecting the last one against Sevilla. Estadio Anoeta will be overcrowded and Sociedad need to give the best to win this match. Barcelona hasn't won here since 2006 and that means 8 consecutive matches in which Sociedad won 5 of it. I don't think that Barcelona will win here even if their coach will send the best team on the pitch. I believe that Real Sociedad will stay undefeated for the 9'th match.