Not like Pacman has an iron chin either. Getting hit like that would put anyone down. Boxers always tell you it is the ones you don't see coming that are the worst... Pacman just got caught way out of position and at the very wrong time man on that KO.
Pacquiao was aggressive from the opening bell, but paid the price in the third round when he got by a Marquez right hand that put him down. Pacquiao got back up and seemingly took control of the fight, dropping Marquez in the fifth round and landing the bigger punches until he was dropped
"I got hit by a punch I didn't see," Pacquiao said.
Pacquiao, who earned more than $20 million for the fight, was ahead 47-46 on all three scorecards after the fifth round.
There was no title at stake in the 147-pound fight, but that didn't stop 16,348 fans from filling the MGM Grand Arena and roaring in unison from the opening bell as the two fighters went after each other.
Ringside punching stats underscored the ferocity of the bout, showing Pacquiao landing 94-of-256 punches to 52 of 246 for Marquez. But it was the one big right hand from Marquez that counted more than anything, knocking Pacquiao out for the first time in a career that goes back 17 years.
"He was in charge," Pacquiao's trainer Freddie Roach said. "
He just got a little too careless and got hit with a punch he didn't see."
Promoter Bob Arum immediately said he could see a fifth fight between the two boxers, and a dazed Pacquiao seemed to agree.