Uploaded July 2026 | Updated September 2026, 1 day ago

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On May 21, 1966, Muhammad Ali defended his World Heavyweight Championship against Britain's Henry Cooper at Arsenal Stadium (Highbury), London, England.

The rematch came nearly three years after their unforgettable first meeting, when Cooper famously knocked Ali (then Cassius Clay) to the canvas with his legendary left hook.

This time, Ali arrived determined to leave no doubt. Displaying exceptional speed, precision, and footwork, the champion gradually took control of the contest. Cooper battled bravely in front of a crowd of 46,000, but Ali's relentless combinations opened a severe cut above Cooper's left eye.

At 1:38 of Round 6, the ringside physician advised that Cooper could not continue, and referee George Smith stopped the fight, giving Ali a technical knockout victory.

This successful title defense further established Muhammad Ali as the world's premier heavyweight during the peak of his legendary career.
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