MILAN, Sept. 2 (Xinhua) -- AC Milan confirmed on Monday that they have signed a two-year contract with Kaka.

Four years after the Rossoneri sold Kaka to Real Madrid for around 65 million euro, the attacking midfielder came back on a free transfer.

Kaka's agent had initially asked for a 6 million euro a season deal, but the Italian club were able to reduce that to 4 million euro with additional bonuses.

The now 31-year-old spent six years at the Stadio Meazza following his 2003 move from Brazilian outfit Sao Paulo.