Juventus rule the roost in Italy like no club has ever done before.
With typical swagger, Ronaldo, 34, said: "This was why Juventus brought me here".
"And they've gone and scored three goals and he's got a hat-trick".
The City boss has been an advocate of the Video Assistant Referee system but after the first four goals all went for a review, Guardiola admitted it needs to get faster.
It finished 3-2 on aggregate.
And after seeing her partner Ronaldo score all three goals in an huge display for the Serie A giants, Rodriguez was overcome with emotion as she wept tears of joy after Ronaldo's 86th-minute penalty effectively won the tie for Juve.
Juventus brought on more firepower in the form of Paulo Dybala and youngster, Moise Kean, and the latter's shot went inches wide when freed by a superb Chiellini ball from deep.
It's hard to think what more Ronaldo could have done to earn a 10/10.
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"They were better than us and we have to compliment them". You are a leader for your teammates, coach and everyone we admire and support every day. It seemed a smart move to cash in.
English sides Manchester City, Manchester United and Tottenham Hotspur have already reached the last eight, along with Ajax and Porto.
And when Bernardeschi's solo run was illegally halted by substitute Angel Correa, Ronaldo completed his record-equalling eighth Champions League hat-trick from the penalty spot to down Atletico yet again.
Ronaldo opened the scoring in the 27th minute before heading past Atletico goalkeeper Jan Oblak again four minutes into the second half. Juventus were better and deserved to win the game.
The Italians repeatedly swung crosses into the box with Leonardo Spinazzola, Bernardeschi and Joao Cancelo all impressing with their delivery.
But it was his inspirational acts during half time that may have proved the biggest influence on his team-mates last night.
For the losing side, it's a familiar feeling.
Tuesday's match may hurt just as much as those losses in Lisbon and Milan with Ronaldo's goals this time denying Atletico the chance of a Champions League final in their home stadium.
Juventus enters the game trailing 2-0 and probably needs Ronaldo to continue terrorizing Atletico Madrid in order to advance.