Brazil coach Dunga described the
sending off of Kaka as "unjustified" after the incident marred his
team's 3-1 victory over the Ivory Coast.
The South Americans
progressed to the last 16 thanks to a Luis Fabiano brace and a
close-range Elano strike. Kaka saw a second yellow when Kader Keita fell holding his face after an innocuous collision between the two.
And Dunga said: "The player who commits the foul escapes the yellow card, I have to congratulate him for that."
The Brazilian playmaker will now miss his country's final group game with Portugal next Friday in Durban.
"It was a totally unjustified dismissal of Kaka, he was fouled and yet he was punished," added the Brazil coach.
"It was a very complicated game, a very physical game I might add. There were many fouls committed and all of us, who love football and desire beautiful football, always ask that the beautiful game is controlled.
"We have to know what is good football and what is not. So when the referee allows certain fouls or certain incidents to go unpunished that is not right.
"I must actually congratulate that Ivory Coast player.
"We played much better than Ivory Coast and received more yellow cards than our opponents without really having committed any serious fouls.
"So we are left a little bit in doubt. What do we really have to do not to receive these yellow cards?"
Prior to his sending off, Kaka - who in the build-up had been the focus of much speculation regarding his lack of form - showed glimpses of the player who was named World Footballer of the Year in 2007.
After the match, the Real Madrid player refused to discuss his dismissal but complained about Ivory Coast's physical approach.
"It was a tough match," he said. "It got violent in two or three plays there."
Elano seemed to suffer the most as the former Manchester City midfielder left the field on a stretcher after injuring his right ankle.
The midfielder screamed with agony after Cheik Tiote's over-the-ball challenge. However, Brazil doctor Jose Luiz Runco said the injury was not serious and believes Elano could be fit to face Portugal.