I don't fully go along with this conspiracy plot there's plenty of papers covered the trouble, just google it. It's not been headline news everywhere but that's due to editorial preference rather than concerns over any kind backlash.
Anyway what's interesting is this is their second game in this competition they've had hooligans rioting. UEFA charged them for violent fan behaviour after the Utd matches and now this. Surely they should be looking at quiet a severe punishment given their previous history for crowd trouble?