Knockouts that always make you cringe no matter how many times you see them.

[Youngblood]

gender aside, this is one brutal KO regardless...

http://www.youtube.com/watch?v=1h-hmcnlmrQ
the sound of the Lewis/Rahman II KO also...just sick. from the vantage point you hear it like a bullet from a distance, as in see it then hear it...delayed. brutal.

[Kirkland Laing]

Abraham Gevor

http://www.youtube.com/watch?v=XGQfadN_10Y

[Julius Rain]

Hearn over Duran just what he said he'll do.

[LBSCFC]

Herol Graham v Julian Jackson
Joe Louis v Rocky Marciano
Larry Holmes v Muhammad Ali (ok not a knockout but still a stoppage. painful to watch)
Razor Ruddock v Michael Dokes
Mark Breland v Lloyd Honeyghan
Manny Pacquiao v Ricky Hatton

There the ones that immediately spring to mind