Everyone is saying Naseem but I don't think that's really what was meant.. The thread said fighters who were UNABLE to rebound from big losses, not fighters who didn't try... How are we to know what the Barerra loss did to Nas as a fighter, he never made any effort to get back to his best form.. IMO Meldrick Taylor is head and shoulders above most mentioned so far.. Although he did go on to win a legit belt in a higher weight class directly after the Chavez fight, in fact won a couple of belts I believe and not over some joke contenders, Mcgirt was a good WW champion, but he was still never the same. I think what seperates Taylor is the pure physical toll that was taken on his body.. Tyson, Bowe, it's completely anyones guess how much the losses had to do with it as oposed to a lack of focus or bad habits outside of the ring.. In fact Im sure both were never the same before they suffered their first defeats.. Taylor was truly a young fighter ruined, Chavez was his first big fight and what he accomplished after that fight despite never being the same should be a testament to his potential and what the loss really did to him.