The Sentinel newspaper claims that defender Joe Davis could be returning to the club.
The defender, son of former Crewe boss Steve Davis, graduated through the Vale youth ranks to make his debut in 2011. He won the club’s young player of the year award in 2012.
He then made 27 appearances in the next three years but left the club in the summer of 2014 to join Leicester City.
He failed to make any appearances for the Foxes but he did enjoy a successful loan spell with Fleetwood and the move was subsequently made permanent. After a season with the club the 23 year-old was released in the summer.