Marouane Fellaini and Robert Huth face three-match bans after being charged for violent conduct following their unseemly spat on Sunday.
The pair were involved in an altercation during Manchester United’s 1-1 draw against now Premier League champions Leicester City at Old Trafford.
Fellaini appeared to elbow the Foxes defender after having his hair pulled. Huth’s alleged provocation had Louis van Gaal angry afterwards, claiming it only appropriate ‘in sex masochism’.
Both men have until 6pm on Wednesday to respond to the FA charges.
An FA statement read: “Off the ball incidents which are not seen at the time by the match officials are referred to a panel of three former elite referees.
“Each referee panel member will review the video footage independently of one another to determine whether they consider it a sending-off offence.
“For retrospective action to be taken, and an FA charge to follow, the decision of the panel must be unanimous.”
A three-game suspension would see Fellaini available for the FA Cup final against Crystal Palace at Wembley, given United still have a trio of Premier League fixtures remaining.
The crunch comes next week with a trip to West Ham United – the final ever first-team game staged at Upton Park – with the winner putting pressure on Manchester City to finish fourth.
Van Gaal was left seething after the weekend incident, claiming United should have been awarded a penalty for Huth’s involvement inside his own box.
“When I grab you by the hair, what are you doing?” the Dutchman said. “Shall I do it? It’s also a penalty. When I grab your hair, you react also. I know for sure.”