Kaka was shocked over the racist gestures by Atalanta fans after during AC Milan's defeat.
An Atalanta fan threw a banana at Kevin Constant.
"In my view these problems go beyond football," said Kaka. "I don't like that the stadium becomes a spotlight for these people. If someone is racist, then he is at all times, including at work and in everyday life. The people who can do something about this ought to take action."
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