Croatia coach Slaven Bilic slammed English referee Howard Webb after his side's 1-1 draw with Italy at the European Championships on Thursday.
Bilic felt his side should have had a penalty when Thiago Motta dragged down Nikica Jelavic in the box at a corner.
"I don't agree with coaches who don't comment on referees. This is very important for my job," said Bilic.
"He's so important for my job. We can talk about whether or not I'm objective or subjective and of course I'm not objective.
"But that was a clear penalty on Jelavic, I'm sure of it. The referee was not good.
"I didn't like his performance, he helped Italy. I can't say he was good, he wasn't good for us."