The two welterweights waged war until an accidental clash of heads in the fourth round injured Collazo, forcing the ref to halt the bout Saturday night on FOX PBC Fight Night.
Champions Shawn Porter, Errol Spence Jr. and Keith Thurman, former titleholders Andre Berto, Adrien Broner, Luis Collazo and Danny Garcia, top 147-pound contenders Jamal James and Yordenis Ugas and unified lightweight champion Mikey Garcia all discuss their eagerness to face one another for welterweight glory.
Andre Berto edges Devon Alexander by split-decision in showdown of former welterweight champs on PBC on FOX
Former middleweight champ Peter Quillin defeats top contender J'Leon Love and former super lightweight titleholder Sergey Lipinets is victorious in his welterweight debut.
Former world champion Peter Quillin takes on 168-pound contender J'Leon Love in the co-main event, while unbeaten light heavyweight contender Marcus Browne faces Lenin Castillo from Nassau Veterans Memorial Coliseum.
From world champions to top contenders, the one constant motivation in training or inside the ring is to give their all for their sons and daughters.