Manny Pacquiao proved beyond any doubt that he is the modern day Henry Armstrong after he dominated defending WBO welterweight champion Miguel Angel Cotto, flooring him in the in the third and fourth rounds before stopping his brave but outclassed opponent in the 12th round of their super-fight in Las Vegas.

Referee Kenny Bayless stopped the contest 55 seconds into the final round.

Filipino's Pacquiao can now claim seven titles in seven weight classes, although the´´IBO`` crown he won from Ricky Hatton wont please the purists.

Cotto's showed incredible heart in suffering only his second defeat. But it became obvious from the first round that he couldn’t cope with Pacquiao´s speed. The Puerto Rican finished the fight with his face badly swollen and blood flowing from cuts and from his nose.

"Manny Pacquiao is one of the best boxers I ever fought``said Cotto after the fight.

"I didn't know from where the punches were coming."

Paquiao and his corner were ecstatic after the victory.

"I tried my best to knock him out," said Pacquiao. "I thought in 11th round they would stop the fight. I am surprise he continued to fight."

Pacquiao is now without doubt the best pound-for-pound fighter in the world. The only man who stands a prayer of beating Pac-Man is Floyd Mayweather, but even he would be the underdog if and when that fight is made.