Mourinho admits their relationship broke down at Real Madrid.
Mourinho told Spain Intereconomia: "He (Ronaldo) had three great seasons with me, I don’t know if they were the best in his career because at Manchester United he had great seasons too.
"But I think we found for him a tactical situation that helped him express himself on the pitch perfectly as shown by goal figures. The only problem has been that a coach criticises him from a tactical point of view trying to improve him and he has not accepted it well thinking, perhaps, that he knows it all and that the coach could not help him become any better.
"But there is no other problem. The last two games, which have been the only games in which he has not played because he always played before and he always gave everything for the team, in these last couple of weeks he has had this pain in his back and I don’t ever doubt the players when they say they are injured."