Sir Alex Ferguson was given a four-match touchline ban for improper conduct by the Football Association (FA) here on Thursday following an outspoken attack on referee Alan Wiley. The Manchester United manager, who admitted an FA charge of improper conduct, publicly labelled Wiley as "unfit" after his Premier League champions were held to a 2-2 draw by Sunderland at Old Trafford on October 3.

But on Thursday he was banned for four games, of which two are suspended until the end of the 2010/11 season, fined 20,000 pounds (33,148 dollars) and warned as to his future conduct following his "grossly improper and wholly inappropriate" comments about Wiley.

Peter Griffiths, chairman of the regulatory commission which decided Ferguson's punishment, said after Thursday's hearing: "Each member of the commission recognised Sir Alex Ferguson's achievements and stature within the game.

"Having said that, it was made clear to Sir Alex that with such stature comes increased responsibilities.

"The commission considered his admitted remarks, in the context in which they were made, were not just improper but were grossly improper and wholly inappropriate. He should never have said what he did say.

The commission said the suspended sanction would be automatically activated should Ferguson be found guilty of a similar charge before the end of the 2010/11 season on top of any sanction imposed for that offence.

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

The 67-year-old Scot has since apologised to Wiley.

Ferguson issued his apology on United's website following comments his remarks had undermined the FA's 'Respect' campaign, designed to encourage better behaviour towards referees at all all levels of the game, although he maintained his assertion that the fitness of Premier League officials remained a topic for discussion.

"I apologise to Mr Wiley for any personal embarrassment that my remarks may have caused and to the FA for going public with my views," Ferguson said at the time.

"My only intention in speaking publicly was to highlight what I believe to be a serious and important issue in the game, namely that the fitness levels of referees must match the ever-increasing demands of the modern game, which I hope will now be properly addressed through the appropriate formal channels."

Following his side's 2-0 defeat to Liverpool last month, Ferguson questioned whether Andre Marriner, who took charge of the game at Anfield, had the required experience for a match of such significance.

He also accused Martin Atkinson of being in an "absolutely ridiculous" position when he awarded Chelsea the free-kick that led to their winner against United at Stamford Bridge on Sunday.