The Sentinel newspaper says that Vale are waiting for Ryan Inniss to sign a contract with Crystal Palace before making a move to sign him on loan.
The defender is a top summer target for the Valiants after an impressive loan spell last season.
Vale will be hoping to pair Inniss with new signing Remie Streete in a new-look central defensive partnership.
Inniss’ signing would add to an impressive summer rebuilding process by the club. Manager Rob Page has already added Streete, Ben Purkiss, Sam Foley, Anthony Grant and Sam Kelly to his squad following the departures of Ben Williamson, Tom Pope, Feddie Veseli and Mark Marshall.