Manchester United boss Sir Alex Ferguson is relishing the challenge a cashed-up Manchester City now represents. He told Shortlist magazine: "There are the usual top four, but there are probably another three clubs now who have the set-up to challenge the dominance of the top four in the next few years and ultimately that has to be good for the Premier League."

Ferguson reiterated that he is not ready to quit just yet and has not even turned his thoughts to what he will do in retirement.

But he was clear that United will be his last job, casting doubt on whether he will take on the challenge of leading a GB United team at the 2012 Olympics.