By Rick Reeno

MGM Grand, Las Vegas - Former champion Brandon Rios will be ringside on Saturday night, when Mexican junior middleweights Saul "Canelo" Alvarez and Alfredo "Perro" Angulo will go to war in the main event of a Showtime Pay-Per-View card. Rios is backing the underdog, Angulo, to win the fight.

Rios potentially sees Angulo pulling out a late knockout win - a prediction which is shared by several trainers and fighters.

"I'm going for Angulo. I love underdogs. I don't know it's going to be a knockout or a decision, but I'm going for Angulo. It could be a [knockout] in the late rounds. But it could be a decision. I'm just going for Angulo, because he's the underdog and I love underdogs," Rios told BoxingScene.com.