Are there any rumors/stories of recognized iron-chinned fighters KD'd in sparring?

I know McCall sparred Tyson, I wonder if he ever was knocked down. Has there been any rumors of fighters known for their chin KO'd/KD'd in sparring?

 

Stories and rumors are just that but Ollie resigned for the session once against Tyson in his career as his sparring partner for an accidental punch to i believe the spine?

I know there is film on YouTube just search "Oliver Mcall quits against Tyson"

 

He almost got KD'd here, would have been if it wasn't for the ropes. Purely a balance thing but a punch landed.

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Jim Corbett is supposed to have ko'd Jim Jeffries in a handball court when Jeff was his sparring partner,two witnesses attested to it.
Vitali Klitschko was floored by Travis Walker and Renaldo Butler in sparring.
Marciano was floored by Toxie Hall ,his sparmate. Sonny Liston was floored by Ray Patterson in a spar.

 

Sources?

 

Actually was Mccall who did hurt Tyson several times, Oliver was an usual sparring partner for Tyson because he always was ready and tough enough. And i heard that trevor berbick was a Tyson sparring partner in the early 90s and Tyson looked horrible

 

There is a rumor(i think that it is false) that Carlos Monzón knocked down Joe Frazier

 

Obviously the inspiration for the eloquent "broke my back, spinal" interview.

 

Adam Pollack,Ring Magazine, Peter Wilson.


Trainer Confirms ShoBox Co-Headliners Floored Vitali ...
standing8count.wordpress.com/2007/04/03/trainer...

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03/04/2007 · TRAINER CONFIRMS "SHOBOX" CO-HEADLINERS FLOORED VITALI KLITSCHKO DURING SPARRING Travis Walker and Raphael Butler, Who Decked Former Champion Within Days Of Each Other, Box Separate Foes At The Target Center, Minneapolis, Minn., Friday, April 6, 2007, 11 p.m. ET/PT NEW YORK (March 30, 2007) - Travis Walker and Raphael Butler knocked down then-World Boxing Council

 

Can you please link them im curios about all of those claims.

 

Greg Page dropped Tyson in sparring also

 

I saw a montage of bad deadlifting with a remix of that quote tis gold.

 

Source?

 

Witness: Vitali Really WAS Dropped in Sparring - Boxing Forum
www.*******.com/forums/showthread.php?t=52218

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"Travis Walker and Rafael Butler were hired to work with the Klitschkos (for $1,500 a week) and that's what they did. Ed Mahone was there somedays too." (Mahone challenged Vitali for the WBO title...
Marciano was floored by a left hook thown by Toxie Hall whilst preparing to fight Don Cokkell . Peter Wilson then the Daily Mirror's boxing correspondent wrote about it in his book More Ringside Seats,he was at Grossingers Marciano's camp,and interviewed Marciano about it
Pollack wrote about the Corbett v Jeffries incident in his bio Jim Jeffries.

 

Mcall is an underrated puncher i belive it, Oliver was a hard man indeed imagine if it was your job to spar a prime Mike Tyson daily... and not only that to not be dropped once over hundreds of rounds is enough to have a claim to the greatest chin ever.