1 Anders Lindegaard: Understudy to David de Gea, the Dane has made just two appearances under David Moyes, with doubts persisting over his top-level ability.
2 Chris Smalling: The defender has made little progress over the past 18 months, with Moyes reluctant to name him as first choice at centre-back or full-back.
3 Rio Ferdinand: At 35, injuries and age have caught up with the centre-half. A young Ferdinand would be indispensable.
4 Nemanja Vidic: Like Ferdinand, injuries have taken their toll on the captain. Could be retained for his leadership qualities, but contract expires in June and no talks have yet taken place over a renewal.
5 Patrice Evra: Moyes is a huge admirer of the left-back's passion, commitment and influence in the dressing-room, but with his contract due to expire, the 32 year-old may fancy one last move.
6 Fabio Da Silva: Has not progressed and developed like his twin, Rafael, and will be shipped out in the summer.
7 Alex Buttner: Signed as cover for Evra 18 months ago, but while very good going forward, he is suspect defensively, which is not ideal for a full-back.
8 Tom Cleverley: Now 24, the midfielder is facing a crossroads. Does little to affect big games and question marks remain over what he contributes to the team.
10 Javier Hernandez: Appeared destined to be a star after scoring 20 goals in his debut season in 2010-11, but the Mexican has not progressed and his all-round game leaves much to be desired.