New Siena signing Caetano has revealed he's close friends with AC Milan star Kaka.

Caetano was signed in co-ownership by Siena and Fiorentina and will play with the former this season.

"I have grown up with Sao Paulo and Atletico Paranaense," he said. "We have played together for two years at Sao Paulo. We were neighbors and we travelled together to training. Also today, although a little time has past, we are good friends. I'm also friends with his brother."