Celtic have been linked with French goalkeeper Benoit Costil.
According to a number of French websites the Rennes keeper has been watched closely by the hoops with his contract expiring at the end of the season.
A free agent rarely means a bargain for a club with the player able to demand a signing on fee similar to the transfer fee.
Costil is in his sixth season with Rennes and made his debut for France against the Ivory Coast in November.
Any move would be dependent on a number of factors with the key issue being the future of Craig Gordon.
Until the former Sunderland keeper signs a new contract with Celtic there is bound to be speculation that he could be on his way to Chelsea.
Antonio Conte never signed a keeper during January but will be back in the market at the end of the season with Asmir Begovic certain to leave the club.
