Lazio president Claudio Lotito has taken aim at the club's fans.
Lotito is frustrated with their negativity and the racist chanting that will cost them a game behind closed doors in the Europa League.
"The people must realise that this is my club, it does not belong to everybody, so I will control it the way I see fit. There is no such thing as a professional fan.
"Last season many complained that the team was old and lacking in alternatives. I brought down the average age of the squad and signed substitutes up to the task, but the people are unhappy anyway."
