Liverpool have been linked with Victor Valdes, Iker Casillas, Sergio Romero and Neto, but a new name has been added to the list in Kiko Casilla.
Simon Mignolet may be a safe pair of hands, but Liverpool need to give him some real competition for the gloves and a new goalkeeper may arrive in January.
One option is Espanyol shot-stopper Casilla, who has been linked with an £8 million switch and has refused to rule out relocating to Anfield in recent interviews.
Here's what you need to know about Francisco "Kiko" Casilla Cortés:
1. A product of the Real Madrid youth system, 28-year-old Casilla has spent much of his career in the shadow of near namesake Casillas, playing for the Merengues' C and B teams before joining Espanyol.
2. Casilla wears the No. 13 shirt at Espanyol.
4. Casilla has played four times for Catalonia's unofficial national side.
5. This season, Casilla has conceded 10 goals in eight games for an average Espanyol side, winning plaudits in the Spanish media.
See Casilla in action here: