Ronaldo is an early favourite for this year's gong.
Mourinho said: "Cristiano Ronaldo's main objective is to win the league title and his second objective is to win the Ballon d'Or. The latter isn't won by the top scorer, but by the player who wins a great collective title. You cannot win the Ballon d'Or if you don't win the league title or the Champions League. I don't think Bayern Munich or Chelsea have anyone better, so I think he'll win the Ballon d'Or if he wins the league title."