From Joe Farrero's Twitter:
"Jose Aldo injured; bout vs Erik Koch postponed. New UFC 149 main event will be @UrijahFaber vs Renan Barao."
I kind of feel bad for the Calgary crowd. The UFC came out with this huge exciting press conference about their first event there. Now they have Faber/Barao for interim title, and meanwhile the next 2 Canada events get heavyweight title with homeboy Rory, and GSP with mini 4 man WW tourney.