B.J. Penn came out gassed in the the third round against Hughes in the title fight for UFC 63. It was like night and day. For two rounds he dominated the action and then the third round it looked like he ran a marathon and lost...
Well, we have documented proof, as reported from B.J. Penn's own site, that his ribs really were fractured. The document is affirmation from the UFC's own orthopedic doctor. For those of you that can't read "Doctor-ese", he tore the connective tissue in between the sternum and his ribs, which caused strained muscles and internal swelling around the injured site.