Zinedine Zidane remains hopeful his former Real Madrid teammate Ronaldo can make a successful comeback from his horror knee injury.

Zizou said of the crocked AC Milan striker: "I have played a long time with him, we are very good friends.

"It is true that I've seen him and spoken on the phone, it is sad.

"He came back even stronger (from an injury) in the World Cup of 2002. It is true that his age is important, but I hope he can do it again."