Brazil head coach Dunga was left speechless by the dismissal of star midfielder Kaka as the five-times World champions qualified for the last 16 of the World Cup with a 3-1 win against Ivory Coast in their Group G encounter at Soccer City in Johannesburg.
The Real Madrid midfielder was controversially dismissed for a second yellow card in the final minutes for pushing Abdelkader Keita, but the Ivorian exaggerated the impact of the shove by falling to the ground clutching his face.
Brazil coach Dunga was left almost speechless by the sending off.
"It was a totally unjustified dismissal of Kaka, he was fouled and yet he was punished. The player who commits the foul escapes the yellow card, I have to congratulate him for that.
"We are left a bit in doubt, what do we have to do in order not to receive these yellow cards?"
Sevilla striker Luis Fabiano scored a brace while Elano added a third before Didier Drogba replied late on for the Elephants.
Victory takes the South American giants into the knockout phase with a game to spare.
Brazil face Portugal in their final group match on Friday in Durban, while the Ivory Coast face North Korea in Nelspruit at the same time.