.........the second of those after jumping up 2 weight classes like Bernard Hopkins did after beating Antonio Tarver?
I don't know if he did or not, but Henry Armstrong sounds like a candidate for someone who might have done something like that.
Has anybody tried and failed? I think Sugar Ray Robinson tried and heat exhaustion forced him to quit.
http://www.josportsinc.com/item_images/1361911442.jpg http://i.cdn.turner.com/si/multimed...ports.history.sept21/images/spinks-holmes.jpg