Brazil coach Dunga plans to speak to Kaka over the coming days in a bid to help the playmaker stop picking up needless yellow cards.
The Real Madrid midfielder collected his third caution of the World Cup - after two in the 3-1 group win over Ivory Coast - for a trip on Arturo Vidal during his country's 3-0 second-round win over Chile last night.
It took some of the gloss off his return from suspension in a match that saw the five-time champions march into the quarter-finals thanks to goals from Juan, Luis Fabiano and Robinho.
Dunga said: "It is a problem - I don't want Kaka to be out suspended.
"It looks as though the technical players are punished and those who commit fouls aren't always.
"This started happening in the group phase and we are going to talk about this with Kaka. It is a concern for him but we don't want to get bogged down with the issue."
