Miguel Cotto battered Antonio Margarito over nine lopsided rounds before winning a TKO decision at the start of the 10th in their highly anticipated rematch on Saturday at Madison Square Garden.
Cotto, who improved his record to 37-2-0, earned a punishing measure of payback for his loss to Margarito three years ago. The Puerto Rican fighter was never seriously threatened and easily retained his WBA super welterweight title.
Margarito beat Cotto in July 2008, only to later have his reputation tarnished when he used illegal hand wraps before a loss to Shane Mosley. Margarito didn't box again for more than a year.
The Mexican needed surgery to repair a fractured orbital bone following a loss to Manny Pacquiao last year and considered retirement. The New York State Athletic Commission didn't license Margarito until Nov. 22 after ordering another examination of his eye. Cotto took quick aim on the eye and it was swollen shut in the seventh round.
Cotto believed Margarito also used illegal hand wraps in their first fight and claimed he had the photos to prove it. He stared down Margarito in his corner after the bout was stopped.
''Just to look at him and taste my victory on him,'' Cotto said. ''He means nothing to me. I'm here with all my crowd and all my people. He means nothing to me.''
The Tijuana Tornado stopped Cotto in the 11th round in Las Vegas in their first meeting. Cotto said he long resisted a rematch because he didn't want money going to an opponent who didn't fight fair.
Margarito laughed, smiled and even taunted Cotto after suffering several big blows during the fight. His demeanor didn't help him at the end of the seventh round, when he sat on his corner stool, his right eye shut.
Margarito gamely fought on with one eye, hoping for that one brutal blow that could change the fight. But ring doctor Anthony Curreri stopped the fight because of the eye after 3 seconds had ticked off in the 10th round.
''It came to the point there was no vision at all from the eye,'' Curreri said. ''I think it would have been dangerous for him to go out there without any visual field. He did go quite a bit with the eye impaired.''
Referee Steve Smoger did not know what the doctor wanted, causing confusion at the end.
Margarito insisted he could continue, though he was way behind on the scorecards.
''I told them how many numbers I had up,'' he said. ''I knew from now on they were out to protect him because I was building (momentum).''
In an undercard bout, Brandon Rios stopped John Murray in the 11th round after battering him against the ropes and forcing the referee to step in.
Rios, who now has a 29-0-1 record, had surrendered his WBA lightweight title when he failed to make the 135-pound (61-kilogram) weight Friday night. He could win the fight, just not the title.