Sinisa Mihajlovic warned “we can’t carry on like this” after he blamed the referee for Milan’s 1-1 draw with Verona.
Nigel de Jong was sent off and gave away a penalty, but the Rossoneri had complaints.
“I understand the fans, they are right to complain and I am sorry for them and the club,” Mihajlovic told Mediaset Premium.
“You’ve never seen me talk about referees, but you can’t not mention certain things, because for the last two games we’ve been seriously damaged.
“You cannot disallow two goals for offside incorrectly and there was also a clear penalty on Bonaventura. We had our chances and were also stupid to concede that goal.
“The team scored two valid goals, created three clear opportunities in the first half and another three or four after the break.
“We are not playing against the youth team, but against another Serie A side, so we can’t carry on like this.
“We kept pushing even down to 10 men and had 18 shots on goal. What more can we do? It’s not the first time this has happened with the referees. I can not talk about referees, but that doesn’t mean I’m stupid.”