A biography of Oscar Battling Matthew Nelson, without question the toughest and most durable professional boxer ever to enter a ring. In the years since his death in 1954, there has been little disagreement over the significance of his life: a bona fide ring champion, whose endurance was second to none, and whose trilogy with Joe Gans was one of the greatest in sports history.

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, entertainer, real estate mogul, entrepreneur and ladies' man. The first ever champion in his weight class to mount a comeback, he strove to break new ground (even if he wasn't always successful). This book tells the story of a ring legend whose endurance was second to none and whose trilogy with Joe Gans is one of the great rivalries in sports history.