Underdog stuns unbeaten favourite with amazing one-punch KO to record huge upset and become unexpected world champion

On This Day: Down Goes Tyson! Buster Douglas stuns Mike Tyson

Legendary underdog Buster Douglas on the price of his shock KO of, buster douglas

UFC 293: Sean Strickland stuns Israel Adesanya in one of the biggest upsets of all time

Joe Louis - Wikipedia

The biggest upsets of 2022

What was the most shocking result of a boxing match in your lifetime? - Quora

When Underdogs Win By Spectacular Knockout

Anthony Joshua vs Otto Wallin RECAP: Undercard results and JEFF POWELL'S round-by-round scores as AJ stops rival

Legendary underdog Buster Douglas on the price of his shock KO of, buster douglas

Jake Paul vs Andre August LIVE: Huge KO in first round and undercard results tonight - Yahoo Sports

Recap: Joseph Parker scores sensational upset win over Deontay Wilder

Who Won Bonuses? UFC Bonuses: Every Single UFC Bonus in 2023

Joshua scores TKO over Wallin in Saudi Arabia; Parker stuns Wilder in unanimous decision

Who Won Bonuses? UFC Bonuses: Every Single UFC Bonus in 2023