I just looked on Karim Benzema on wikipedia and it had the following:
After much speculation linking him with a move to european giants such as Real Madrid, Barcelona, and Ac Milan Lyon confirmed on the 21 November 2008 that Karim will join Manchester United on the 9th of July for a fee of 31 Million pounds which will cast further doubt over Carlos Tevez's future at Manchester United this will soon be confirmed by Sky Sports and Setanta Sports News also the official websites of the corresponding clubs
the link for this is: http://en.wikipedia.org/wiki/Karim_Benzema#Transfer
Of course there is no source sited, so it could have been any idiot messing around.
But, this is was true, do you think this signing is good for United? esp. as it will for sure b the end of Tevez!!!