Both Manchester United and Paris Saint-Germain have been charged by UEFA because of incidents in the lead-up to their Champions League clash at Old Trafford on Tuesday.
PSG won the game 2-0 and United are looking at two charges after their fans were accused of blocking stairs and throwing objects during the game.
The visiting fans are alleged to have set off fireworks, thrown a number of items including coins and committed acts of damage such as ripping out seats along with other crowd disturbances. The net near the disabled section was also damaged.
Ex-United winger Angel Di Maria had a bottle thrown at him and he was marked out for special treatment from the home fans who were unhappy with his displays in a red shirt.
PSG fans brought flares into the ground and one reportedly suffered hand injuries as a result of the pyrotechnics.
On a bad night for Ole Gunnar Solskjaer's men, Paul Pogba was sent off in the dying stages after a second bookable offence which will keep him out of the away leg in March.
PSG fans making their way to the game caused damages to trams in Manchester city centre and a hole was punched into the roof of a tram by supporters. Many fans congregated in Exchange Square in the city and there were reports of flares being set off close to the Arndale shopping centre.
The case will be dealt with by the UEFA Control, Ethics and Disciplinary Body on February 28.
Utd have been charged with the throwing of objects by fans and blocking of stairways
PSG have been charged with the setting off of fireworks, throwing of objects, acts of damages and crowd disturbance
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