Greatest shot that wasn't a knockout?

Arguello hit Pryor with a straight right hand that should have floored him. That's a shot that would have lead to a stoppage or to the canvas.

Morrison-Ruddock. Ruddock goes down as if shot, gets up about 3 seconds later.

more recently but still a good one: Bradley-holt-1Uploaded by grestrep. - Discover the latest sports and extreme videos. real time at around 4:40, slow-mo around 6:05

The right hand Forrest hit Mosley with in their 1st fight before his knockdown was ****in harsh!! @ 06:05 God damn...

Joe Frazier's first vicious left hook knockdown of Bob Foster. I don't know how he ever got up from it. His knockdown of Jimmy Ellis was almost as good.

Lennox right uppercut to Vitali That punch almost took Vitali off his feet, the guy has some chin.

The right hand Alexis Arguello hit Aaron Pryor with in the 13th round of their first fight. I don't know how Pryor took that punch. Picture perfect right hand. Pretty much what I was thinking.

Another contender is the right hand Shavers nailed Holmes with.

Riddick Bowes uppercut on Holyfeild. Nothing comes close.

Calzaghe vs... :p

Lennox right uppercut to Vitali

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That pretty much was the knockout punch by Ibaebuchi because the fight ended without Byrd really doing anything more, he fell over a second time without getting punched clean and he could do nothing to defend himself. That punch ended the competitive portion of the fight Along similar lines. Ricky Hatton's right hand may as well have ended Malignaggi in the 2nd round.

The right hand Alexis Arguello hit Aaron Pryor with in the 13th round of their first fight. I don't know how Pryor took that punch. Picture perfect right hand.

That pretty much was the knockout punch by Ibaebuchi because the fight ended without Byrd really doing anything more, he fell over a second time without getting punched clean and he could do nothing to defend himself. That punch ended the competitive portion of the fight