Leo Santa Cruz (34-1-1, 19 KOs) and Abner Mares (31-2-1, 15 KOs) square off in a world title rematch between featherweight world champions and SoCal rivals. Plus, undefeated Jermell Charlo (30-0, 15 KOs) defends his belt against former world champion Austin "No Doubt" Trout (31-4, 17 KOs). Live from Staples Center in Los Angeles, CA.