What. A. Game.
Chelsea went into this match against Barcelona with a goal advantage, but they quickly had their backs to the wall as Sergio Busquets cancelled out that advantage and John Terry left his team horribly disadvantaged by getting himself sent off.
When Barcelona made took advantage of their numerical superiority over Chelsea by finding a second goal through Andres Iniesta, it looked like it was all over for Chelsea.
Yet, out of nothing, Frank Lampard threaded a beautiful through-ball which Ramires latched on to and finished with an equally beautiful chip over Barcelona goalkeeper Victor Valdes.
And just like that, Chelsea were on their way to doing the impossible, doing what no one would've imagined they'd be able to do: Defeat Barcelona with 10 men.
It wasn't smooth sailing from there either. When Cesc Fabregas won a weak penalty after a challenge from Didier Drogba, most people watching the game expected Lionel Messi to finally end his goal-scoring drought against Chelsea.
But miraculously, he hit the bar, and finally, people began to believe that this could be Chelsea's night, that this could be a Champions League night where history was made.
And when Fernando Torres scored Chelsea's second goal on a counterattack at the end of the game, his goal provided the perfect ending to a unpredictable, unprecedented night of football.
Without a doubt, this won't be a game we will soon forget about. But while the game's biggest moments will stay with us for years to come, the finer lessons will soon be forgotten.
So while the game is still fresh in all our minds, let's look at some of the things we can take away from this game.