What is the greatest body punch in a post 1900 heavyweight boxing title fight?

That's still the top one for me.

 

Frazier pounded on Ali's body mercilessly in the Thrilla in manilla.
Joe Louis literally broke Schmeling's back with a body shot in their rematch.

 

Tyson's body shot that put Spinks on the canvas for the first time (officially) in Michael's career. Hard to top that.

 

Louis punch on Schmeling's body is frightening to watch. It hurts every time I watch the fight.

 

Forgot about that one. That was the beginning of the end.

 

Some of Tysons earlier fights as champ were brutal with body shots weren't they?
He Hammered Tubbs to the body and ripped into Biggs guts.

 

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Hopkins shot on Delahoya was impressive

 

The punch to the stomach with which Dempsey knocked Carpentier out deserves a mention.

 

Heavyweight championship title fight

 

He was officially down against Qawi, also with a body shot.

 

Oops ty.

 

Ah, that's right. I apologize for the mistake. For some reason I thought the referee ruled that a slip.

 

I believe Spinks fell once a bit before the knockdown after Qawi hit him with a jab to the body, and that was ruled a slip. He then fell again and that was the knockdown. Though most think that also shouldve been ruled a slip.