Zeman insists the jeers from Roma fans on the weekend were not racist.
"I am a man of Rome," he told RTL 102.5. "I have been here for 20 years and the people have always shown me love.
"The problem is not the colour of the skin, but the behaviour. If a player performs well, nothing happens.
"They did not whistle Balotelli because of his skin colour, but his attitude. He can be controversial at times."