Real Madrid signing Kaka urges AC Milan not to sell Pato to Chelsea

New Real Madrid signing Kaka has urged former club AC Milan not to sell Alexandre Pato to Chelsea.

"Milan has to build around Pato. He's very strong now at just 19 years of age and in a few years will be a real phenomenon," said Kaka.

"AC Milan should not accept any foreign offer for him. They must keep hold of him."