Roberto Duran quit against Ray Leonard and went on to add to his Hall of Fame legend afterward. Ingemar Johansson was DQed in the Olympic final for "not giving his best," basically quitting on his feet, and went on to win the heavyweight title. Larry Holmes basically quit against Duane Bobick in the Olympic Trials -- the ref stopped it for repeated holding and non-combativeness -- and become an all-time great as a champion. Any other notable boxers bounce back from quitting to go on to great things? (BTW, title of the thread comes from an outdated -- I think -- British expression that a fighter with no heart has 'a bit of the geezer in him')
