Manchester United manager Sir Alex Ferguson has submitted his observations to the Football Association after he was asked to explain comments he made about linesman Simon Beck following the 1-1 draw with Tottenham Hotspur on Sunday.
Ferguson labelled Beck's performance "shocking" after he failed to give United a clear penalty when Wayne Rooney was challenged in the penalty area by Spurs defender Steven Caulker.
The United manager also said Beck had history with his club after not ruling out an offside Didier Drogba goal in 2010, saying: "There was no way we were going to get a decision from (Beck)."
Ferguson submitted the information prior to the 6pm deadline, the FA has confirmed. Now the FA has until Tuesday evening to decide whether to formally charge Ferguson.
Should they rule that Ferguson's comments amount to a questioning of Beck's integrity, they will charge the United boss with misconduct and he could receive a touchline ban and or fine.
Ferguson has a long history of disciplinary charges with the FA. In March 2011 Ferguson was hit with a five-match touchline ban and a £30,000 fine for questioning the integrity of referee Martin Atkinson after a match at Chelsea.
He did escape punishment earlier this season, however, despite confronting Mike Dean, assistant referee Jake Collin and fourth official Neil Swarbrick during the Red Devils' game against Newcastle.
Information from the Press Association was used in this report.