Four-Division and Six-Time World Champion Robert Guerrero shadow boxes on November 19, 2012 in Los Angeles, California during a media workout in preparation for his November 24, 2012 WBC Interim Welterweight World Championship title defense against former Two-Time Welterweight World Champion Andre Berto at Citizens Business Bank Arena in Ontario, California which will be televised live on HBO World Championship Boxing. Photos by Gene Blevins/Hoganphotos.

Undefeated junior middleweight rising star Keith Thurman shadow boxes on November 19, 2012 in Los Angeles, California during a media workout in preparation for his fight against former World Champion Carlos Quintana.