Lewis knows a thing or two about both fighters. He faced Tyson in June 2002, defending his WBC heavyweight title with a knockout in the 8th round. That fight came near the end of Lewis' career, which wrapped up with a win over Vitali Klitschko in his 44th and final pro bout.
Tyson made his mark early, becoming the youngest world heavyweight champion in 1986 when he stopped Trevor Berbick in the second round for the WBC title. He went on to unify the division, holding all the belts from 1987 to 1990. Along the way, he took down big names like Larry Holmes, Michael Spinks, and Frank Bruno.
Usyk's been making waves in recent years. He just beat Tyson Fury for the second time in December, keeping his WBC, WBA, and WBO heavyweight titles. Their first fight in May saw Usyk become the first undisputed heavyweight champ of the four-belt era. Before that, he'd cleaned out the cruiserweight division in 2018.
When Mail Sport Boxing asked Lewis who'd win between prime Tyson and Usyk in their 'Winner Stays On' round, Lewis didn't hesitate. His answer? "Mike Tyson."
It's hard to argue with Lewis' pick. Tyson in his prime was a force of nature, knocking out opponents left and right. His speed and power were off the charts, making him one of the most feared fighters in boxing history.