Bell,Calif. ---  Undefeated #1 contender Mike Alvarado of Denver, CO (33-0) poses during training in preparation for his upcoming championship fight against former Lightweight champion Brandon "Bam Bam" Riosof Oxnard,Ca.(30-0-1) Saturday,October 13 at the Home Depot Center in Carson, Ca. Promoted by Top Rank in association with Teiken Promotions and Tecete, this sensational night of boxing will be televised live on HBO Boxing After Dark. ---- Photos by Chris Farina/Top Rank.