Muhammad Ali vs. Ken Norton I
March 31, 1973
Sports Arena, San Diego, CA
ABC Wide World of Sports
The first fight of their trilogy, Norton would end Ali's second run as heavyweight champion with this split decision victory, capturing the NABF title. Ali would fight most of the 15 rounds with a broken jaw.
Six months following this loss Ali would avenge the loss in his second meeting with Norton, becoming the first ever 3-time heavyweight champion.