Barcelona are watching Galatasaray defender Servet Cetin.
The 28 year-old Turkey international is under consideration for the January market at Barca, says Cadena SER.
Despite the arrival of Dmytro Chygrynskiy, Barca coach Pep Guardiola still feels his defensive options are thin on the ground and a player of Cetin's experience would fit well into his plans.
The stumbling block could be the player, with Cetin unlikely to be keen on a bit-part role, even at a club of Barca's stature.