 Names like Jack Nicklaus, the Golden Bear, who won 117 professional golf tournaments in his career. What about men like Joe Montana, the Comeback Kid, widely regarded as one of the greatest quarterbacks to ever play the game? And of course, no list of great athletes, or at least those who assume they were the greatest, could be complete without Muhammad Ali, the heavyweight champion of the world, who for consecutive years held the title and claimed to be the greatest.