8 Insanely Tough Displays of Athlete Perseverance

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Muhammad Ali: Broke Jaw, Fought 10 Rounds

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Muhammad Ali: Broke Jaw, Fought 10 Rounds

Two unusual things happened to Muhammad Ali after his bout on March 31, 1973, against Ken Norton. He lost the fight and couldn't talk. A 2nd round punch to his face broke Ali's jaw. With too big of an ego to throw in the towel, Ali continued to fight but lost a split decision after 12 rounds. Ali would go on to avenge the loss, beating Norton two times.


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