AdvertisementRediscovering A Forgotten Boxer's 'Longest Fight'Play06:43Download AudioJune 16, 2012NPR StafffacebookEmailJoe Gans, left, defends his boxing title in 42 brutal rounds against Oscar "Battling" Nelson in Goldfield, Nev., on Sept. 3, 1906. (Bettmann/CORBIS)
Joe Gans, left, defends his boxing title in 42 brutal rounds against Oscar "Battling" Nelson in Goldfield, Nev., on Sept. 3, 1906. (Bettmann/CORBIS)