Ronaldo was in Milan on Friday to undergo medical tests. Italian media reported the clubs were settled on a price between seven and seven-and-a-half million euros.

"When he was The Phenomenon, the number one in the world, I was just starting my career in Brazil," Kaka was quoted as saying on Milan's Web site (www.acmilan.com) on Friday.

"So for him to come to Milan now, for us to play for the same club, would be a dream come true."

Ronaldo has been angling to leave Real since team coach Fabio Capello criticised him as being overweight and told him he did not feature in his future plans.

Kaka said the three-times FIFA World Player of the Year could still be a key player for Milan.

"Ronaldo's greatest strength, in my opinion, is his ability to decide a match with one moment of brilliance," said the 24-year-old, who played alongside the striker at last year's World Cup in Germany.

"He can be decisive even without the kinds of runs he used to make."

Ronaldo was applauded by Milan's fans when he appeared in the stands at the San Siro to watch the team draw 2-2 with AS Roma in the Italian Cup on Thursday.

"He came to see us after the match. He seemed very happy," revealed Kaka.

"He has chosen Milan ahead of another, much richer offer. That means he still feels he has a lot to give in a league that really counts."

Milan captain Paolo Maldini joined in the praise of the 30-year-old striker.

"After Maradona, he is the strongest opponent I've ever faced," the defender said, recalling his former duels with Ronaldo, who played for Inter Milan between 1997 and 2002.

"He is still one of the best players in the world. If he arrives, we will make a big jump in quality."