Few fights captivate the minds of boxing fans like two undefeated champions in their prime fighting. That's what we'll have when David Benavidez and David Morr

Saul "Canelo" Alvarez's refusal to face his top two challengers while undisputed super middleweight champion forced those two men, David Benavidez and David Morrell, into a high-stakes showdown this Saturday night.

Here are updates from throughout Saturday's four-fight card in Las Vegas, headlined by light heavyweight's David Benavidez vs. David Morrell.