The aggregate scores were levelled on the hour mark when Blaise Matuidi pounced on a fumble from Real goalkeeper Keylor Navas, before English referee Michael Oliver took centre stage in the dying embers of the clash.
Theirs had been a monumental effort and just when it seemed as if the night was heading for 30 more minutes of drama in the shape of extra time, Madrid won a penalty after Medhi Benatia appeared to shove Lucas Vazquez in the back.
Right on this note, let us look at the three things that went right for Real Madrid against Juventus. He is hit from behind. Bruña initially wrote: "A penalty was what it was, as Benatia mowed down Lucas Vázquez in the last play of the game". That is their game. Madrid captain Sergio Ramos, who was suspended from the second leg encounter was watching the game from the stands but came down to the dug-out in the second half as he watched his side surrender a three-goal advantage.
Giorgio Chiellini has claimed that nobody should be "surprised" by Real Madrid's last-gasp penalty that ensured their progression to the Champions League semi finals.
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That deficit made Wednesday's return leg seem like an impossible task for Juventus but they got off to the ideal start when Mario Mandzukic opened the scoring with a header two minutes into the match.
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Oliver hesitated before pointing to the spot, and then came a mass protest by the Juventus players, which led to veteran goalkeeper Gianluigi Buffon receiving a straight red card.
The 32-year-old should never have been allowed on the sidelines, however. The ref awarded it and we can't change that, but I think it was a penalty.
Massimiliano Allegri, Juventus boss: "The penalty, the referee saw that and gave the penalty. We suffered and this has to serve as a lesson for us that in football you can't take anything for granted, you have to keep fighting until the end".
"The pulse increased, but I calmed down, and I knew I'd be decisive", he continued.
Star forward Cristiano Ronaldo stepped forward and sent the ball into the net to send the Bernabeu faithfuls into a frenzy.