LAS VEGAS - Vindication was extra sweet for Juan Manuel Marquez (55-6-1, 40KOs) got revenge on Saturday at the MGM Grand with a stunning knockout of Manny Pacquiao in the sixth round of their welterweight bout. Marquez went to a draw with Pacquiao in fight one and lost controversial decisions in their next two fights.

"I am very happy with this victory. I feel so, so happy. I am very happy that I didn't retire last year. Now I feel great that I leave no doubt in the way that I got this victory over Manny. It's hard when you're fighting your rival and the three judges too. I got robbed. This is the result of all the hard work that I did. I put this fight as one of my greatest victories absolutely. Right now in my future I don't know what is coming but I am going to celebrate with my family and my friends in Mexico," Marquez said.

Freddie Roach, the trainer of Pacquiao, would love to get a fifth fight with Marquez. But Roach is not excactly sure if another fight with Marquez is the right move right now.

"I would love to get a rematch but is that the best move? I'm not sure which way we're going to go right now. It really depends upon how he feels and what he wants to do. I'll definitely tell him to retire if he's not able to do it in the gym, but we have to see. I thought Manny was having a good fight. He ran into a good one. I thought we almost had him. Manny got a little careless and then he ran into that punch. He fought a very smart opponent. It sucks. I hate to lose," Roach said.