The Daily Star Sunday says United have started the search for Rio Ferdinandâ€™s successor with Portoâ€™s Mangala emerging as a top target.
Ferdinand may have ended his England career but he is hoping to secure a new one-year deal at Old Trafford.
The centre-back hits 35 this year and United know they will need a replacement.
France Under-21 defender Mangala, 22, is a Â£20million target for the Reds who are tracking him closely.
Is Mangala the player to succeed Rio? Give us your shout below...