I'll be the old guy who goes on and on about their historic rivalry, their first three dead-even fights that went 2-0-1 for the great Pacquiao, even though, if you ask me, Marquez should have gotten the nod in the second and third fights.
But there's no question that what I will be talking about most is what just happened Saturday night, the most exciting thing I have ever seen in a boxing ring: Juan Manuel Marquez's brilliant counter overhand right that put the great Pac-Man to sleep at 2:59 of Round 6.
Make no mistake, boxing fans, this will go down as one of the most historic one-punch knockouts in the sport's history.
This may have been the shortest fight of their classic series, but it was a full-out war while it lasted. Pacquiao came out looking as good as he has in three years, showing brilliant head movement that made it very difficult for Marquez to counter-punch him.
Marquez, meanwhile, stayed patient for the first two rounds, working Pacquiao's body. You could almost see him thinking about how to solve the new wrinkle Pac-Man was showing.
The fight heated up in the third, as Marquez dropped Pacquiao with a perfectly timed overhand right, set up by a fake to the body. Pacquiao was clearly hurt.
Nevertheless, Pacquiao recovered well and came out strong in the fourth. It was a competitive round that I scored for Marquez, but that could have easily gone either way.
It was clear that both great warriors were settling in for another legendary battle.
Pacquiao evened up the knockdown total in the fifth, dropping Marquez midway through the round and then hurting him badly with a brutal right hook inside of the last minute of the round. Marquez's legs were wobbly and it seemed like a miracle that he even made it to the end of the round.
Marquez came out for Round 6 with a busted nose. While the Mexican great was clearly still in the fight, Pacquiao looked to be pulling away. It was clearly going to be another round or Pacquiao.
And then it happened. With one second left in the round Marquez, one of the most dangerous counter-puncher's in boxing history, landed the counter of his career, finding Pacquiao with a crushing right that knocked the former pound-for-pound champion into a deep sleep.