Skysports.com understand Watford and Sheffield United are keeping tabs on Crystal Palace's Mikele Leigertwood.
Leigertwood's future is up in the air as he is out of contract and as yet no new deal has been offered.
The news has alerted Premiership new boys Watford and Sheffield United who are both keen to bolster their squads.
Championship outfit Cardiff are also thought to be monitoring Leigertwood as they look to build a side capable of challenging for promotion.
New Palace boss Peter Taylor is planning to hold talks with the powerful defender in the next few days to discuss his future.
Palace are thought to be ready to offer Leigertwood a new deal to extend his stay at Selhurst Park, but the player is keeping his options open as he waits to see if any other offers come his way.