Eusebio Sacristan's side beat Sporting Gijon 3-1 away last weekend and the manager has decided to keep things as they are, meaning that Willian Jose continues in the final third with support from Mikel Oyarzabal and Carlos Vela.
Raul Navas, meanwhile, keeps his spot alongside Inigo Martinez at the heart of the defence, while Asier Illarramendi will start in the middle of a midfield three, which also includes the skipper Xabi Prieto.
As for Jose Enrique's charges, who beat Celtic 2-0 in the Champions League on Wednesday night, the fabled 'MSN' attacking trio lines up in its entirety, despite Neymar being involved in a car accident on Sunday morning.
Real Sociedad: Rulli, Martinez, Martinez, Berchiche, Navas, Illarramendi, Prieto, Zurutuza, Vela, Jose, Oyarzabal
Subs: Tono, Gonzalez, Elustondo, Granero, Canales, Concha, Juanmi
Barcelona: Ter Stegen, Pique, Mascherano, Alba, Roberto, Rakitic, Busquets, Gomes, Luis Suarez, Messi, Neymar
Subs: Cillessen, Digne, Marlon, Denis Suarez, Rafinha, Alena, Alcacer
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