Yeah he was unlucky. He did hit him on the back of the head but Mir turned his head away from the punches and that was what caused it. Could well have been ended there and then if the ref hadn't stopped it.
UFC 83 announced. What a card
http://www.ufc.com/index.cfm?fa=eventDetail.FightCard&eid=1082
Earlier that month though I reckon the UFN13 card is better. Must be the best non PPV event so far.
Kenny Florian vs. Joe Lauzon
Stephan Bonnar vs. Matt Hamill
Thiago Alves vs. Karo Parisyan
Houston Alexander vs. James Irvin
Frankie Edgar vs. Gray Maynard
Clay Guida vs. Samy Schiavo
Marcus Aurelio vs. Spencer Fisher
Josh Neer vs. Din Thomas
Anthony Johnson vs. Tommy Speer