Ronaldo bagged a hat-trick, a record equalling seventh in the competition, as Madrid thrashed their cross-city rival Atletico Madrid 3-0 in the semi-final first leg.
"I am very happy for the goals and for reaching 400 goals with Real Madrid", said Ronaldo, including the disputed effort.
Real Madrid dominated proceedings in the opening minutes and got the lead through a trademark Cristiano Ronaldo's thumping header in the 10th minute.
And they struck twice more in the final 20 minutes to give the score line the reflection Real's dominance deserved. After the break, the first goal came of when Casemiro's unmistakable cross slit the Atletico Madrid's defence, before the Portuguese legend put his team on the verge of another final appearance after the break.
Tuesday's goals at the Santiago Bernabeu Stadium also left him within one of this season's scoring leader in the Champions League, Lionel Messi, who scored 11 with Barcelona before the Catalan club was eliminated by Juventus in the quarterfinals.
Please Wait while comments are loading. "Technically we interpreted the game very well".
Madrid had 11 attempts against only one for Atletico in the first half alone. "It's great to have a player like Ronaldo", he said.
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When we lost these players in a period of 17 matches in seven weeks, it was the impossible job. It was not a gamble . "Seventeen matches with 16 players is completely impossible ".
Real Madrid have always disputed a ruling by Spanish soccer authorities that Pepe should be credited with a goal in their 2-1 win against Real Sociedad back in 2010, as he deflected Ronaldo's free-kick and was later given the goal. "He always does. He scored five in the quarterfinal and three today, so it's incredible for us".
It was bad when Dani Carvajal went down injured against Atletico Madrid, but it's gotten even worse for the Merengues.
"Atletico are a good side and it is not a coincidence they are in the semi-finals again".
"They were better and you have to congratulate them", Simeone said.
"Atletico" another trend is the Diego Simeone's side won the first match (the "Bayer" and "Lester"), and then quietly in a favorite dry-style game.
And Simeone is clinging to the hope of something similarly unexpected. There's no such thing as an easy game in football.
"I told the side that we need to get over it, forget about it, football is marvellous".