Emmerson Boyce looks increasingly likely to be leaving Selhurst Park this summer, with Wigan, Fulham and Charlton all keen to offer the defender a route straight back to the Premiership.
Wigan are the only side to have made a definite bid, but their £1m offer was quickly rejected by the Eagles.
All three sides could afford to offer an increased bid, though Boyce's value will be affected by the fact that he's in the final year of his contract at Selhurst.
The 26-year-old is still considering an extension to stay in SE25, telling the Croydon Guardian: "I haven't heard anything about a move. I got offered a contract last year and we've just been talking. I'm just keeping my options open at the moment."