Charlton could move for released Town keeper Richard Wright if current glovesman Darren Randolph opts against remaining at the Valley. Wright was told his second spell with the Blues was at an end prior to the final game of the season against Sheffield United.
The Addicks have offered out-of-contract Randolph a new deal but the Irishman has yet to indicate whether he will accept the terms.
Wright, 32, has also been reported to be interesting Town's local rivals Norwich City.