He was sent off during the 3-1 victory at Marassi following an altercation with Nicolas Andre Burdisso on the touchline.
"There was no gesture, nor drama, but the tension and irritability of the match situation ends at the final whistle.
"Roma put us under pressure in midfield, where we did not do that well, but this was an important victory against a great team.
"I have some talented players and they have dedicated themselves to my vision completely. A Coach can propose anything he wants, but if the players don't listen then it's pointless."