Javier Mascherano returend to training following the knee injury he suffered last month, while Pedro Rodriguez looks set to face Atletico Madrid on Sunday after recovering from an illness.
Four previous winners of the UEFA Champions League meet in the first leg of their semi-finals this week, which both seeing a German side taking on Spanish opposition. But who will prevail?
Thiago Silva believes playing without Javier Mascherano and Carles Puyol would be a bigger blow to Barcelona than being unable to field Lionel Messi, but has insisted the Catalans are the best side on the planet.
Barcelona are sweating on the fitness of Lionel Messi after the FIFA Ballon d'Or winner suffered a hamstring injury, while fellow Argentine Javier Mascherano has been ruled out for six weeks.
Real Sociedad became the first side to beat Barcelona in La Liga this season thanks to a last gasp winner by Imanol Agirretxe. Gerard Pique saw red for the visitors who had raced into a two goal lead.
Tito Vilanova, Andoni Zubizarreta, Carles Puyol and Javier Mascherano have all given their views on Pep Guardiola's appointment at Bayern Munich.