Most of the UFC's brightest stars stand atop their respective divisions currently, and they look to be stable as title holders as they look down upon the rest from their perch. They are stars because of their skills and personality.
But who makes them toss and turn at night? Who waits in the wings for their chance to strip them of the gold around their waist?
The UFC is filled with amazing talent and the sport can change on a dime. One punch, one submission. That's all it takes. One good night from a challenger who has all the skills and the right gameplan.