Roma have been fined €50,000 for crowd disturbances at the first leg of their Champions League semifinal against Liverpool, as well as having their fans barred from selling tickets for their first away fixture in next season's competition.
One Liverpool supporter, Sean Cox, was left in a coma after being attacked outside Anfield before the match, which Liverpool won 5-2.
A ban for a second away match has been deferred under a probationary period of two years, European football's governing body said in a statement.
UEFA also fined Spartak Moscow €55,000 and Athletic Bilbao must pay €40,000 for fan clashes at a Europa League game in February.
A Spanish policeman suffered a cardiac arrest and died during the crowd trouble.
Spartak are now banned from selling tickets to their next two away games in UEFA competitions.
Athletic must close a 2,000-seat section of its stadium at its next home game.