Winger Nicky Adams wants to complete a promotion hat-trick with Carlisle United following his move from Northampton.
Mansfield Town midfielder Chris Clements signs a new contract with the League Two side.
Veteran Barnet defender Michael Nelson signs a new one-year deal with the League Two club.
Winger Matty Blair signs a two-year deal with Doncaster after rejecting a new contract to stay with Mansfield.
Doncaster have completed the signing of Mansfield midfielder Matty Blair on a two-year deal.
Northampton winger Nicky Adams will join Carlisle on a free transfer at the end of his contract with the Cobblers.
Carlisle will sign winger Nicky Adams on a free from Northampton on 1 July, as well as Morton midfielder Billy McKee.
Michael Nelson has signed a new contract with Barnet.