Kaka admits: Man Utd's Ronaldo now No1

"I believe that the number one candidate is still Cristiano Ronaldo, above all for what he did and won in the Champions League with Manchester United," Kaka told La Gazzetta dello Sport's Sportweek magazine.

However, he isn't entirely ruling himself out of the race.

"For me there's still half a season, so we'll see," he said.

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