Manchester United number two Carlos Queiroz insists Cristiano Ronaldo is better than Kaka and will become the world's greatest sportsman.
Portugal winger Ronaldo, 22, last week finished third behind winner Kaka at FIFA's world player of the year awards.
But Queiroz said in the Sunday Mirror: "During my career, I have worked with some of the world's finest players like Zinedine Zidane, Ronaldo of Brazil, Raul, Luis Figo and Roberto Carlos.
"Yet, I can honestly say, I have never seen such a football creation like Cristiano Ronaldo.
"Kaka has been named European Footballer of the Year and World Player of the Year, but in my opinion Ronaldo is better.
"The only thing that Kaka has that Cristiano doesn't is a Champions League title."
Queiroz believes Ronaldo, last season's Footballer of the Year in England, will soon bear comparison the all-time sporting greats.
He said: "Cristiano will not only become the biggest sporting attraction in England, but also in Europe and the rest of the world.
"He will be a world star in football like Michael Jordan was in basketball.
"That is because both of these sporting greats share the same skill level in their different fields.
"They have both been blessed with a genius that has never been seen before."
