http://www.guardian.co.uk/football/2010/jan/22/manchester-united-city-fa...
I can't see the logic of this for either side from a footballing point of view. A few months back in Brazil will not prepare a player for the Prem. It could be a simple case of homesickness and I suppose he'll get first team football before the World Cup.
Imagine if he has a stupendous WC, and he's still on our books.