With Carles Puyol's best football behind him, Barcelona are looking for a centre-half to fill the void increasingly left by their inspirational captain.
Despite recently signing a contract extension, Puyol's performances this season have been marked by the unmistakable signs of age. And that's even when he's been fully fit.
He may have plenty of football left in him, but chances are, it will increasingly be in a secondary role, as Barcelona look to strengthen what many see as their weakest position on the field.
Who are the major candidates to replace Puyol?