Muhammad Ali vs. Ken Norton, billed as The Fight, was a professional boxing match contested on March 31, 1973, for the NABF heavyweight championship.

Ali was outmaneuvered by Norton's unorthodox fighting style, which involved jabbing from below and crossing his hands for defence.

As the final bell rang, Norton won on a split decision, igniting a controversy in the boxing world.

[10] According to Dr. Gary Manchester, who performed the operation to wire Ali's jaw together: "The bone which was broken had three or four jagged edges and they kept poking into his cheek and mouth.

On September 10, 1973, Ali and Norton met at the Forum, Inglewood, California, USA, for their highly anticipated rematch.

Ali and Norton met for the third and last time on September 28, 1976, at Yankee Stadium, Bronx, New York, USA, completing their trilogy.