Manchester United are not actively considering selling the naming rights of Old Trafford.
The Sunday Times says United are the only Big Four club for whom a naming rights sale does not appear an option. A club source said a rights sale involving Old Trafford is "not on our agenda".
Sir Alex Ferguson said Chelsea's plans were driven by money. "It is the only reason I can think of. But it does not really concern me. I wouldn't have thought [it would happen at United]."