Skysports.com understands a number of clubs are tracking Gillingham loan star Jo Kuffour.
Kuffour, who is on loan at Gillingham from Bristol Rovers, has impressed at the Priestfield since arriving at the end of September.
The former Arsenal trainee has scored five goals for the Gills, including a sensational first-half hat-trick in Saturday's 4-3 win over Northampton.
Gillingham have expressed an interest in making Kuffour's loan move permanent, but clubs higher up the Football League pyramid are now showing an interest in the hit-man.
League One leaders Charlton are thought to be keeping tabs on Kuffour's situation as they weigh up a move for 29-year-old in January.