Cotto vs Margarito II weigh-in pictures
Champion Cotto scaled in at 152.25lbs for the hotly anticipated grudge match while challenger Margarito who took to the scales to a torrent of boos, clocked in at 152.5lbs.
The pair who have turned the pre-fight babble very personal with accusations of cheating, criminality and assault, did not participate in a face off again as with their final press conference.
Rios weighed in at 136.4lbs before stripping down and coming in at 135.6lbs, and was still unsuccessful after having two hours to get down to weight. Murray, meanwhile, weighed in at 134.75lbs.
Welterweights Mike Jones and Sebastian Lujan made weight for their IBF eliminator both coming in at 146lbs. And light-middleweight contenders Pawel Wolak and Delvin Rodriguez came in at 153.5lbs and 153lbs respectively.