Kaka is back in training football in Sao Paulo with 8 years. First-team debut January 2001. year. Summer 2003rd he moved to Milan with Italian compensation of 8.5 million. Immediately he fought for a place in the starting lineup. He made his debut in the championship match against Ancona (2-0). That season he scored 10 goals in 30 appearances, and Milan won the title and the European Super Cup.
In the season 2004 / 05th scored 7 goals in 36 games in the league that Milan finished second. In the Champions League this season, Milan lost to Liverpool after jedanesteraca and Kaka nevertheless declared the best midfield player of the tournament. In the season 2005 / 06th scored his first hat-trick in Milan jersey. It was 9 April 2006th against Chievo. Three goals in one match of the Champions League he scored against Belgium's Anderlecht, in the victory of his team 4-1.
After the departure of Andriy Shevchenko to Chelsea, Kaka began to have a much more offensive role on the field. In the season 2005 / 06th was the top scorer of the Champions League with 10 goals. His goal against Celtic (1-0) in the quarter and three in the second leg semi-final against Manchester United have been of great importance for the subsequent conquest of the Champions League. In the final, 23 May 2007a. Milan beat Liverpool 2-0. After a foul on Kaka, Milan's Inzaghi goal, Philip took. Scorer of the second goal was again Inzaghi and Kaka was an assistant. For the season, Kaka was voted best striker and Champions League Player of the Year in the choice of UEFA.
Its two-hundredth match in Milan jersey has played 30 September 2007a. against Catania (1-1). Golden Ball won 2nd December 2007a. with 444 votes, which was far more than the runner-up Cristiano Ronaldo. The new contract with Milan was signed on 29 February 2008. according to which the club should remain the 2013th
During the winter transfer window 2008 / 09th there have been rumors that Manchester City for Kaka offered more than 100 million pounds. Milan has reportedly agreed to the offer but Kaka did not want to leave the club.