Carles Puyol will come in for Alex Song at centre-back, as Barcelona face Benfica in the Chamions League tonight.
Tito Vilanova has made just one change to the side that defeated Sevilla 3-2 at the weekend, with the 34-year-old club captain replacing the Cameroon international.
Elsewhere at the back, Dani Alves and Jordi Alba play at full-back, with Javier Mascherano partnering Puyol.
Xavi, Sergio Busquets and Cesc Fabregas start in midfield, whilst Alexis Sanchez, Lionel Messi and Pedro make up the front-three.
Benfica meanwhile, start with former Real Madrid man Exequiel Garay at centre-back, with Nicolas Gaitan and Nemanja Matic playing in midfield.
Benfica (4-5-1): Artur; Maxi Pereira, Garay, Jardel, Melgarejo; Gaitan, Matic, Bruno Cesar, Perez, Lima; Salvio.
Barcelona (4-3-3): Valdes; Alves, Puyol, Mascherano, Alba; Xavi, Busquets, Fabregas; Sanchez, Messi, Pedro.