Sunderland are interested in signing former Chelsea and West Ham United striker Carlton Cole, according to The Scottish Sun.
It has been reported by the British tabloid that newly-appointed Sunderland manager Sam Allardyce has the Englishman in his transfer thoughts.
The 31-year-old has been training with Scottish Premiership giants Celtic for the past two weeks or so with a view to signing a contract.
Cole is a free agent at the moment, having left Premier League side West Ham at the end of last season.
Allardyce has worked with his English compatriot at the Hammers and knows him inside out.
The chance to play in the Premier League and work with Allardyce could be too tempting for Cole, and Celtic do need to act fast if they want the striker to be part of their squad this season.