Mikey Garcia: From four-division champ to underdog (video)

With a win in his next fight, Mikey Garcia may become a 5-division champion. He'll join the likes of Tommy Hearns, Sugar Ray Leonard, Oscar De La Hoya, Manny Pacquiao, and Floyd Mayweather Jr. to be the only fighters to conquer that feat, but Garcia has a big obstacle in Errol Spence Jr. in his way.