"Ronaldo isn't better yet. Now we are looking for him to turn up in good condition for January 2 when we start preparation after the break," he said.
Ancelotti added: "It has been an amazing year - everyone knows that. We will do what we can to make 2008 a year to remember like 2007.
"But first, we have to think about preparing for the derby. I think that it has been so much simpler to adapt to the change in time zone coming back, so the players should be in excellent condition.
"I don't think that it will be an easy game as they are such a strong side, especially going forwards.
"However, I think that the victory in Tokyo could be the springboard that brings us back into the title race and helps us reduce the distance between Inter and ourselves."