Not a sport, as I said. This is 100% show business.

The way I see it, the referee favoured Brazil during the game and gave Kaka the first yellow card to disguise it. The second yellow card to Kaka was actually to his benefit: now he is excused from the game against Portugal, so he can start the next phase without the threaten of a yellow card, rested and clean. Show business to provide fuel for bar discussions, nothing else.