Harry Redknapp has called for the fan who hit the fourth official with a missile during Portsmouth's goalless draw with Aston Villa at Villa Park to be banned from football for life.
Assistant referee Phil Sharp fell to the ground and required treatment for a cut above his eye after being struck by a coin thrown from the home fans in the latter stages of the game.
The Football Association and Villa have already condemned the incident and launched separate inquires.
But Redknapp, who believes he was the intended target of the coin, has called for the fan involved to be banned from football for life.
He said: "It was probably thrown at me in all honesty but whoever does such things is a coward and a moron.
"That's all you can say about brave people like that. Hopefully the culprit will be banned from football for life. There is no place in our marvellous game for that."
Meanwhile, Redknapp admitted he was pleased with the point gained from the goalless draw, during which his side was reduced to ten men following the dismissal of Sean Davis.
"It was a good all-round team performance and a good away performance," he added.
"I looked at the stats way into the second half and they still hadn't had a shot on goal.
"For an away team it's a difficult place to come, they're a good team."