The Brazilian was not registered for this month's Club World Championship campaign in Japan due to nagging injury, but Berlusconi admitted last night: "It's a mystery, it is difficult to understand. Clinically there is nothing wrong.

"We hope to be able to address and resolve his psychological problems."

Berlusconi also admitted Barcelona ace Ronaldinho remained on Milan's radar.

"If the coach thinks he is necessary for the good of the team, we will talk about it. As we have always done in these 25 years of Milan."