Undefeated World Ranked Heavyweight Contender and 2012 U.S. Olympian Dominic “Trouble” Breazeale (17-0, 15 KOs) participated in an open media workout at Crossroads Boxing Gym in Ontario, Calif., on Tuesday afternoon ahead of his world title challenge against IBF Heavyweight Champion Anthony Joshua (16-0, 16KOs) on Saturday, June 25 on