Both could start tonight against Champions League opponents Juventus.
"I think Gareth Bale has done well," said Ronaldo.
"He had a difficult time because he didn't do a pre-season. I understand that and if you speak with him you can see he is very excited to help the team, but it is better to leave him alone and not add pressure.
"He is a fantastic player, a fantastic boy and he always wants to learn.
"People put pressure on him because of how much he cost. I leave him alone because I am sure 100 percent that he is going to do well for the club."
Portuguese ace Ronaldo also dismissed suggestions that himself and Bale could not succeed in the same team because of their similar styles of play.
"I think all the good players can play together," added Ronaldo. "I want to play with good players, no matter who they are, and I think we can win important things together."
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