Oscar "Battling" Nelson (1882-1954) was perhaps the toughest professional boxer ever to enter the ring. Although a Hall of Fame inductee, Nelson remains a lesser known great of boxing lore. From the beginning of his career at 14, the Danish immigrant presented himself as a man of integrity who never smoked, drank or took a dive. In the ring and in public, Battling Nelson crafted a Renaissance man image as a lightweight champion, reporter,...