Gilberto Silva is confident Kaka can illuminate the World Cup now he is back to full match fitness.
The Real Madrid playmaker endured a difficult domestic campaign in 2009/10, with niggling injuries blighting his debut season at Santiago Bernabeu.
There is, however, no doubt that Kaka remains among the world's best and is capable of guiding Brazil to global glory if he hits peak form.
Gilberto believes it is only a matter of time before he reaches that level, with a 78-minute run-out against North Korea on Tuesday having helped to ease him back into action.
The Panathinaikos midfielder said: "In every game he will improve. It is very good to see him because he is really hungry to do well for Brazil and for himself.
"All the team are behind him and he has got the confidence of everyone. I am sure for the next games he will be much, much better."
Kaka has also declared himself satisfied with his opening salvo in South Africa, while remaining well aware that he can do much better,
"As a debut, I believe it was good. I didn't know what condition I would be in for the World Cup because of injury, so I am happy," he told globoesporte.com.
"I hope to constantly improve, but the debut has been a positive one."
Having failed to scale the heights expected of them as a team against North Korea, some have already started to question Brazil's claim to the overall title.
Gilberto, though, is adamant the Samba stars will improve as the tournament goes on and believes a 2-1 win over North Korea was not a bad result given how deep the Asian outfit defended.
"What is important for us is to keep doing our jobs in the right way, it was a good start," he said.
"Maybe some people expected us to score four or five goals, something like that, but we must accept that football has changed.
"If you don't do the right things in the right moment you will have a problem.
"When you face an opponent who drop behind the ball moving the ball around is the only way to try to break through their defence.
"If we try too desperately to score a goal that leaves a hole. This is the way we have found to play through the defence and at some stage you hope it works."