The Brazilian has been dismayed by the crowd violence in Italy this week and warned fans in Gazzetta dello Sport today: "If you continue with such violence, I could leave Italy.

"My wife and parents often come to the stadiums to see me play and I am concerned for the safety of my family."

Chelsea boss Avram Grant would love to bring Kaka to Stamford Bridge and has discussed the Brazilian with Blues owner Roman Abramovich.