Kaka says even his grandmother had harsh words for the referee who gave him a red card in the match against Ivory Coast. He adds that from now on he will be more careful with the way he acts to avoid problems with the "severe" refereeing of the World Cup.
Kaka says he didn't deserve being sent off against the Ivorians and is taking the incident as a lesson for the next matches.
He has to "police himself" on the field to avoid getting into a difficult situation with the referees.
Kaka says he "can't repeat" what his grandmother Vera called the referee of Sunday's match.
He will miss the third group-stage game, against Portugal.