Fiorentina president Andrea Della Valle praised the behaviour of fans after their home defeat to Lazio.
The ultras left the Curva Fiesole empty for the first 10 minutes in protest at recent refereeing decisions, then held up leaflets with the same message.
"I think it was a very civilised protest. Now we must focus on Juventus, both in Serie A and in Europe," said ADV.
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