Every champion must face a worst-case scenario head-on every once in a while.
Some get injured, some have bad nights and others show up physically when they know they never showed up mentally on fight night. These things happen, and for some current UFC champions, it happened int 2012. Will it happen in 2013?
If it happens, Demetrious Johnson and Dominick Cruz will know. So will Jose Aldo and Benson Henderson. Ditto for the winner of the Georges St-Pierre vs. Carlos Condit fight, Anderson Silva, Jon Jones, and Junior Dos Santos. How will they know? Because when something happens to a UFC champion, it does not go unnoticed.
So, what exactly are these worst-case scenarios?