Gustafsson has lesioned himself, and Daniel Cormier is stepin up to challenge the title holder.
http://forums.sherdog.com/forums/f2/gus-vs-jones-ii-postponed-daniel-cormier-vs-jon-jones-ufc-178-a-2788971/
http://www.ufc.com/news/Jones-Gustafsson-2-Postponed-DC-gets-Title-Shot
VS
