Zidane also had words of support for Gareth Bale ahead of Wednesday's game.
"I don't know how many years in a row [Ronaldo] has played 60 or 70 games, but he doesn't stop," claimed Zidane.
"There comes a moment when it is necessary for him, for the team, for everything, for him to not play. He is better this way.
"Of course we talk about it, for the good of everyone.
"Gareth is the way he is, he tries to do his best and that is all. There is a lot of talk about him one way or another, but the important thing is to realise that the team is very important.
"I ask them to give their all and he tries to do that."