Muhammad Ali V Ken Norton 1973 Boxing Programme: Official on-site souvenir program for the World Heavyweight Championship fight between Muhammad Ali and Ken Norton at the Sports Arena, San Diego, California, on March 31 1973. Norton won after breaking Ali's jaw with a straight right hand in round 2. Amazingly, with Angelo Dundee begging to stop the fight, Ali continued and withstood another ten rounds before losing a narrow points decision (Very clean example)