Date: 31st March 1973
Venue: Sports Arena, San Diego, California, USA
Title: NABF Heavyweight Title
Promoted by: San Diego Presents
( 41 - 1 - 0 )
Weight: 221 lbs
( 29 - 1 - 0 )
Weight: 210 lbs
An upset was in the air at The Sports Arena in San Diego, California on the 31st March.
With Ali entering this bout as a 5 to 1 favourite, Norton surprised most, including Ali with his efficiency at landing hard punches throughout. At some stage, one of these powerful blows broke Ali's jaw. "The Greatest" as Ali called himself, managed to hear the final bell despite the severe pain he had to endure.
Norton won by split decision to hand Ali only his second career defeat.
Scores: Frank Rustich 4-7 | Fred Hayes 6-5 | Hal Rickards 4-5