The very definition of career defining moment is: 1,Joe Frazier beating up Muhammed Ali 2.Jack Dempsey killing Jess Willard 3.Salvador Sanchez thrashing Wilfredo Gomez 4. Donald Curry icing Milt McCrory 5. Foreman destroying Joe Frazier
Don’t forget Douglas beating Tyson to seal his legacy Lewis beating Tyson to seal his legacy Williams beating Tyson to seal his legacy McBride beating Tyson to seal his legacy. Yeah, beating Tyson is the making of legacies.
I guess this will seem a tad prosaic compared to most of the posts here but the fight I thought of straight away was Tony Sibson hammering Frankie Lucas for the British Middleweight Title. Sibbo was a third choice substitute coming in on two weeks notice against the fringe World class Lucas. The fight was wild and vicious and left wild man Frankie in a heap in the sixth. Sibson would never be Tony Who again.
All great choices, and I’ll add Zárate’s dismantling of Zamora too. I think that’s still arguably the biggest all-Mexico fight. Certainly the biggest of its era.