MK Dons have released four players following Karl Robinson's confirmation as the club's new manager.
MK Dons have signed former Luton defender Sol Davis on a short-term contract after a successful trial.
Grimsby boss Mike Newell has confirmed he is ready to offer teenage striker Chris Jones a contract.
Kevin Gallen has signed a new one-year contract to stay at Luton following the club's relegation.
Luton defender Sol Davis has joined Peterborough on a two-month loan deal.