Arsenal manager Arsene Wenger questioned the honesty of referee Mike Dean and called him "a disgrace" during a heated exchange after last month's 1-1 draw against West Bromwich Albion.
Wenger received a three match touchline ban after he admitted to questioning the integrity of the referee in the match officials changing room.
In written reasons published by the Football Association, Dean's match report states: "As we've entered the dressing room after the game Mr Wenger stood behind us in the doorway and told the West Brom steward to 'let him in'.
"He was very aggressive leaning towards me, pointing aggressively at me saying 'you're not honest' on numerous occasions. I replied 'so you're calling me a cheat'.
"He replied 'I maintain what I say, you're not honest'.
"He then said 'you've done this to us many times before, you're supposed to be professional, you're a disgrace'. He was then ushered out of the room by the West Brom safety officer."