Roma winger Rodrigo Taddei slammed ref Mauro Bergonzi after their 2-2 draw with Roma on Wednesday night.
"We haven't learned how to play against a referee," he bellowed. "Adrian Mutu elbowed Cicinho and should have been sent off, but nothing was given.
"We were hard done by as the ref only whistled against us. Everyone talks about the refereeing and now it's time we did."