By now, you've seen it already.
Watch it again anyway.
This is how La Liga was won.
Three minutes after Alexis Sanchez scored Barcelona's equalizer, Ronaldo raced onto Mesut Özil's angled pass, set himself up with a dribble and fired past Barca keeper Victor Valdes.
Game over. Title race over.
With the victory, Real raced seven points clear of Barcelona with four matches remaining.
"My goal was important because it gave us three points, but the victory is what really matters," Ronaldo said. I've scored in my last three games at this stadium, but what matters is the team and it gave an exhibition performance tonight. I wish to congratulate my teammates because they gave a very good performance. They deserve this."
Real Madrid assistant Aitor Karanka praised Özil and Ronaldo. Karanka called Ronaldo "the best player in the world."
"Ozil dispelled all doubts regarding the shape he's in. Cristiano Ronaldo is a great player and must continue performing like this," Karanka said. "We are accustomed to seeing him give great performances. He scored the goal that gave us the Copa del Rey title last year. He is the best player in the world."
And barring an epic collapse, Real Madrid are the best team in La Liga.