Los Angeles, Ca. --- Former Jr. Welterweight champion Mike Alvarado of Denver,Co works out in Los Angeles for his upcoming 12-round welterweight battle against four-division world champion Juan Manuel Marquez of Mexico. Promoted by Top Rank® in association with Zanfer Promotions, Márquez Boxing and Tecate, Márquez and Alvarado will collide at The Forum in Inglewood,Ca. on Saturday, May 17 and will be televised live on HBO®. --- Photos by Chris Farina/Top Rank.