It's reported around 600 chanted insults and tried to break into the locker room, while the directors had to be escorted out by police.
"This match could've been the turning point for our campaign, but instead it went against us. It is my fault because I am at the head of this group," said the Coach.
"We've got to take responsibility and keep moving forward, even if we were unlucky on a couple of occasions.
"I have some doubts over the Lecce penalty, but the fact remains we've got to confront the situation that we are in.
"After last week's Novara game I kidded myself that we had turned the light back on, but instead I understand now it is going to be a season of blood and tears."