Monaco are monitoring Chelsea defender Gary Cahill.
The 32-year-old is out of contract at the end of the season and has been told he can leave the club in January.
According to beIN sports reporter Matt Spiro, Monaco are looking at Cahill, among a host of other defenders, to fix their poor defence.
The Ligue 1 bottom-feeders, managed by Thierry Henry, are also scouting Laurent Koscielny, Pepe and Martin Skrtel.
Cahill has also been linked with Aston Villa, West Ham, Southampton and Arsenal.