The Cameroon international claimed "Manchester United, Manchester City and Liverpool" had all been in contact about a move to the Premiership next season.
Ferguson is always seeking to add more youth to United's senior squad and M'Bia fits the profile of a young, mobile, athletic and powerful player.
The Reds are well equipped in midfield at present but Paul Scholes is now 33 and the six foot-plus M'Bia has the added attraction of being a capable right- back. United are looking to bring a defender in as insurance with Gary Neville only just on the brink of a senior return after 12 months out and Wes Brown's Old Trafford contract saga very much unresolved.
