Brazilian attacker Kaka will be officially unveiled as an AC Milan player to the media on Thursday morning.
The 31-year-old, who returned to the Italian outfit on Monday after spending four years at Real Madrid, moved to Milan on a free transfer.
According to a statement on the club's official website, the former Sao Paolo youngster will be unveiled at a press conference later this week.
Kaka has scored 29 goals in 87 games for his country.