Two young Mexican brothers walked into his gym and refused to leave until he made them champions. So he did.

Boxing trainer and FOX Sports commentator Joe Goossen watches one of his fighters spar.

Many sports (outside of such whispered-commentary spectacles as golf or snooker) have a frankly atavistic appeal, and the potential to reduce their spectators to hooting mobs held in check solely by the weight of the 32 oz cups of concession stand Budweiser in their laps. But of all contact sports, boxing is…