Gerardo Martino, Carles Puyol and Xavi have discussed Barcelona's 2-1 loss at Ajax, with the coach urging his team to get back to winning ways against Athletic Bilbao.
Barcelona captain Carles Puyol has said that he is fit and keen to play against Real Madrid amid concerns that Gerard Pique will not be able to participate.
Saturday's Spanish La Liga action saw Barcelona and Atleico Madrid drop points to surrender their perfect start to their campaign, while Real Madrid earned a 2-0 victory over Malaga.
After two knee operations and seven months on the sidelines Barcelona captain Carles Puyol has been recalled to the squad to face Osasuna, with coach Gerardo Martino insisting the defender is ready to play.
Ballon d'Or holder Lionel Messi reported back for Barcelona training after recovering from a thigh injury he suffered in a league match against Almeria two weeks ago.
Barcelona and Argentina stalwart Javier Mascherano will be out for up to two weeks after limping out of his club's 4-1 win over Real Sociedad with a hamstring injury.