Most extreme examples of the "Glass cannon" archetype in boxing?

It's a marvel he's competed at the level has has, over two weight classes, been knocked out or stopped as many times as he has... and he's come back every time. Does it never catch up to some of these MMA guys? Mark Hunt's still going as well.

 

I know, I know.

Id probably go Tommy Hearns as my ultimate choice.

I don't think Floyd Patterson applies due to his chin, not his power.

I would say Bob Foster as well actually.

 

In the late 90's and early 2000's there was a middleweight or super middle from New Bedford or Dartmouth, MA named Scott "The Sandman" Pemberton. He either dropped a bomb on your face or got blitzed. Beat Omar sheika, got KO'd by Jeff Lacy, Manfredo, Charles Brewer, and two other no-names.

 

Hmmm, have you seen his fight with Michael Sprott.

 

After beating Lesnar there were a lot who thought he might just be the best HW on the planet, and he'd already been brutally ko'd 5 times by that point.

But then he had a trio of awful losses, before smashing JDS to bits. Incredible.

 

Yeah, he's been having his lights turned off for well over a decade himself, and he just had a fight a few months ago, against the next big hype monster the UFC is building up.

 

Illunga Makabu, Kudryashkov. Do they qualify? I suspect we'll see both taste a couple of more KO losses before all is said and done.

 

Zack Mwekassa in boxing and K-1 styled kickboxing.

Poppped Mchunu's cherry and ended Pat Barry's career.