The "Great John L." reigned supreme as world heavyweight champion from his victory over Paddy Ryan in 1882 until James J. Corbett knocked him out in 1892. A drunkard, a wastrel, an adulterer, a wife beater, and a bully, Sullivan still became American's first national sports hero and represented the hopes and aspirations of millions of people. Michael Isenberg traces Sullivan's eventful life from his humble beginnings in Boston to the height...