West Ham United and Crystal Palace are both chasing Fulham fullback Ryan Fredericks.
The Tottenham academy product is out of contract at the end of the season.
The 25-year-old right-back has yet to sign the new deal he was offered last year and he won't do so if the Cottagers lose to Aston Villa in the Championship play-off final on May 29.
Palace seems the more likely destination with uncertainty surrounding who will take charge of West Ham following David Moyes' departure.