In a perfect world, we would have been talking only about four goals in 11 minutes, one of the wildest quarterfinal matches in history, how Manchester City's season is reduced to a "mere" potential Treble and how Tottenham are 180 minutes away from their first ever European Cup final. But we live in an imperfect world, and one of the legacies of Wednesday night at the Etihad is the controversy surrounding Fernando Llorente's goal and the use of Video Assistant Referees (VAR).
After speaking to multiple sources, here's an explainer to help sort things out.
Cox: Tactical keys to the Champions League quarterfinals
Ogden: Seven goals and VAR drama.