Ronaldo struck twice in yesterday's 2-2 draw at Barcelona.
"He's very impressive. He has always demonstrated this and his contribution to the team is incredible. Few provide what he does to our team. We would have to check the history of the club to see anything like him.
"I have great admiration for his commitment He ended the game injured, but did not want to leave. Without him, Real Madrid would be another team," gushed Butragueno.