Kaka tips AC Milan pal Pato for stardom
"There are always new players reaching the top in football and I'm sure Pato will be in my position one day," Kaka told FIFA.com.
"Alexandre is extremely talented and is getting lots of experience at a young age. He will win the FIFA World Player of the Year one day.
"I have had the honour of winning the award and it is a dream come true to say that you are the best player in the world."