Ferguson: Not worried
Sir Alex Ferguson has played down the threat posed by local rivals Manchester City.
City are expected to become a major force in English football after agreeing a takeover deal with the Abu Dhabi United Group for Development and Investment (ADUG).
They have already signed Robinho for a British record transfer fee but Ferguson insists he is not too concerned by the dramatic developments.
Chelsea have spent heavily since Roman Abramovich bought the London club five years ago but Manchester United have won back-to-back Premier League titles and Ferguson is now ready for City's challenge.
"I can't be worried," Ferguson told reporters after a meeting of top coaches at Uefa headquarters in Switzerland.
"We have a good setup ourselves and we've been working to build up the team we've got, so we just have to carry on.
"There are always challenges in football, some years ago it was Chelsea and some years ago it was Arsenal and wherever the challenge comes from we have to accept it. So it doesn't change anything."
City officials have spoken about signing Cristiano Ronaldo for a colossal fee in the region of £135million but Ferguson was amused by the suggestion.
"They can talk," said the United boss.
Ferguson accepts that City boss Mark Hughes will now come under pressure to deliver success to the club.
Asked if he would have liked such responsibility as a young coach, Ferguson replied: "For a young manager it must be difficult.
"You can't judge it from when I started, it is a completely different world now. I am at the tail-end of my career. I've been through all these changes so it doesn't faze me."

Latest Sky Sports News Report
Championship Round-Up - 7th November
Wigan v Fulham - 2nd Half
Wigan v Fulham - 1st Half
West Ham v Everton - 2nd Half
West Ham v Everton - 1st Half
UBS Hong Kong Open Preview
HSBC Champions Review
Chris Burton catches up with Sam Stockley on the day the experienced defender hangs up his boots.
Liverpool undid their hard work of last week, Chelsea marched on while Arsenal claimed the derby spoils.