In terms of the goalkeeping department, discussions remain open with David De Gea over a potential new contract, while Tom Heaton and Nathan Bishop have had extensions triggered on their deals.
Extensions were also processed for defenders Rhys Bennett and Ethan Laird, while Under-21s player coach Tom Huddlestone is expected to stay after discussions over a new contract.
Young forward Mateo Mejia has also been offered a deal.
As announced last month, centre-back Phil Jones is leaving after 12 years and 229 appearances for United.