Canelo Alvarez and Jermell Charlo are fighting at 168 pounds, which is the super middleweight class. Both fighters weighed in at 167.4 pounds, which is just under the limit. Charlo is moving up 14 pounds for this fight, as he is the undisputed junior middleweight champion. Alvarez, on the other hand, is the undisputed super middleweight champion and will be defending his four 168-pound titles.