Manchester United manager Louis van Gaal has asked for a personal hearing to respond to a Football Association disrepute charge.
The Dutchman, 63, claimed referee Chris Foy was against his side in January's FA Cup draw at Cambridge United.
The FA tweeted: "Louis van Gaal denies FA misconduct charge in relation to media comments and requests personal hearing, date to be confirmed."
Van Gaal said last Friday: "I do not think I said something wrong."
He added: "In 30 years as a trainer-coach, I've never been charged. You can confirm, as the media, that I never say anything about the referee."
After the 0-0 draw in the fourth-round tie against League Two Cambridge, Van Gaal told the BBC's Match of the Day: "Every aspect of a match is against us - the pitch, the referee."
He later repeated the accusation, adding: "You have seen the referee. It's always the same."
The FA said on Tuesday: "It is alleged his comments constitute improper conduct in that they allege and/or imply bias on the part of the match referee and/or bring the game into disrepute."