Buster Douglas: Conor Beating Floyd, a Bigger Upset Than Me Over Tyson

Buster Douglas says McGregor beating Mayweather would be an even bigger upset than him KO'ing Mike Tyson.
Conor McGregor beating Floyd Mayweather would be the biggest upset EVER this according to the man responsible for the most shocking upset in boxing history.

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Fight Night Flashback Mike Tyson vs. Buster Douglas

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Douglas knocks out Tyson in one of boxing's biggest upsets ever - Sports Illustrated Vault

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What do you think was the bigger upset, Oleksandr Usyk's defeat of Anthony Joshua or Buster Douglas' defeating Mike Tyson? - Quora