Notts County face a battle to hang onto long-serving defender Stephen Hunt in the summer.
The left-sided stopper has played a big part in the Magpies' League Two title charge this season, helping them to a remarkable 24 clean sheets in 44 games.
The highly-rated Hunt is out of contract at the end of the season and County want him to stay.
County shunned interest from clubs in January, but now the former Southampton and Colchester star is free to talk with other clubs.
Championship sides Doncaster and Sheffield United are believed to be keeping abreast of his situation, whilst Charlton and Southampton are keen.