KnowraJohn L. SullivanLinked fromLinked fromThe 4 pages that link to John L. Sullivan, each with the reason it gives.All 4Broader topic 1Related 3Professional boxingRelated: His career bridged older prizefighting and the emerging modern professional sport.Bare-knuckle boxingBroader topic: His career bridged bare-knuckle championship bouts and the glove era.Heavyweight boxingRelated: His career marks the transition from bare-knuckle prizefighting to modern heavyweight boxing.James J. CorbettRelated: Corbett defeated Sullivan in 1892 to become heavyweight champion.