Newcastle United boss Alan Pardew says referee Mike Dean might be "disappointed" that Sir Alex Ferguson will not face punishment for confronting him at Old Trafford on Boxing Day.
The Manchester United manager was furious after Dean overruled assistant Jake Collin and awarded Newcastle's second goal in the Red Devils' 4-3 win, and approached the match official as he made his way out for the second-half.
However, the Football Association has confirmed no action will be taken against Ferguson as Dean made no reference to the incident in his match report.
Speaking the day after the game, Magpies manager Pardew said: "Mike Dean might feel slightly disappointed he didn't do something about it.
"I think the pressure that was on him was tough to take for a referee, and sometimes when you reflect on a game and look back on it maybe you would have acted differently.
"We do that as managers. I'm sure he might think that as a referee this morning."