This rumor just won't go away. When things like this keep resurfacing, then they tend to be somewhere close to what is likely to happen. It is well known that Sir Alex and Martinez have great mutual respect for each other and over the years have done many loan signings between the mangers.
So when you but one and one together you do get that all important number two.
Federico Macheda came bursting onto the scene with that goal that won United the match late into injury time against Sunderland. Much more was expected of the player, yet so far the young Italian has only managed four professional goals. There is allot of talent there.
A move to somewhere like us, where he can play regularly and have a free run in the team will most likely be where he ends up in January. Yet if it is at Wigan only time will tell.