Sir Alex Ferguson has been charged with improper conduct by the Football Association for his remarks about referee Alan Wiley's fitness.

The Manchester United manager has already apologised to Wiley but that has not saved him from an FA charge. He now has two weeks to respond and can request a personal hearing if he wishes.

Watch highlights of Man Utd v Bolton after the advert

Ferguson made his comments following United's 2-2 draw with Sunderland at Old Trafford on October 3.

He accused Wiley of not being "fit enough for a game of that standard" and accused him of "walking up the pitch for the second goal needing a rest".

Ferguson could face a hefty fine or a touchline ban if he is found guilty of the charge.

The FA said in a statement: "Manchester United manager Sir Alex Ferguson has been charged with improper conduct. The charge relates to media comments made by Ferguson about referee Alan Wiley following United's match against Sunderland at Old Trafford on October 3. He has until November 3 to respond to the charge."

Sign-up to Fantasy Football and WIN AN X-BOX

Register to play Virgin Media Sport's fantastic new fantasy football game and you could get your hands on a brand-new X-Box 360!

Click here for more details