John L. Sullivan. Last Bare Knuckle Champ. First Gloved Champ (Under London Prize Ring Rules!). Undefeated for OVER TEN YEARS. Fought and Won the last bare knuckle match against Jake Kilrain on July 7th, 1889. Only loss after over a decade of Dominance, to a younger James 'Gentleman Jim' Corbett under queensberry rules. The Great John L. was the first American Sports Celebrity. Has a series of memes inspired by him. One of my heroes.