With an incredible record of 0-21, with all of his losses coming by way of knockout, damas y caballeros... Leon Shavers! Check out this unique boxing record: http://boxrec.com/list_bouts.php?human_id=5527&cat=boxer He never went past round 3. Worst jaw ever. Case closed.
my vote goes to JMM. Isnt he on a consecutive knockdown streak gettn floored in 8 straight fights or something?
Paulie got injured early in his career. Not that he was ever a power puncher, but he had a lot of surgery on his hands. He wasn't born spacker fists. And it's Amir Khan. Absolutely disastrous chin.