(see related story on site) (ANSA) - Milan, July 31 - Silvio Berlusconi is leaving open the door for a possible return of Brazilian soccer star Kaka to AC Milan. Berlusconi, the owner of the Serie A club, said Tuesday that he would need to be very careful about the terms of any contract with the high-priced player, but stressed that he "is in our hearts for the player and the man he is". "Kaka is one of those players who have made a mark in the history of Milan," Berlusconi added in comments to the AC Milan's in-house TV channel. The Brazilian joined Milan in 2003 for a fee of 8.5 million euros. He helped Milan win the Serie A title in his first season with them and the Champions League in 2007. After great success in Italy, Kaka joined Real Madrid for a transfer fee of 65 million euros. But he floundered there and is now considered surplus to requirements by the Spanish champions.