Cristiano Ronaldo: I don't understand why Juve protested because it's a penalty Champions League - Real Madrid 1-3 Juventus No doubt in his mind

Just as it looked as though the Real Madrid v Juventus game would be heading for extra time, Los Blancos were awarded a penalty and Cristiano Ronaldo couldn't understand why Juve complained about it.

In the melee that followed, Gianluigi Buffon was sent off by Michael Oliver before Ronaldo blasted Real into the semi finals from the spot.

"I don't understand why they are protesting," he said to reporters after the game.

"Lucas was tackled from behind and if they don't give him the penalty, it's a goal."

Always there in the big moments, the Portuguese knew he was going to score the game winner.

"The pulse increased, but I calmed down, and I knew I'd be decisive," he continued.

For the rest of the match, Real were well beaten, something that Ronaldo acknowledged.

"We have suffered, but it helps us to learn," he added.

"In football, nothing is given away, you have to fight until the end.

"Madrid could've scored more goals, but Juve and Buffon were good."