ROSEMEAD, California - It wasn't hard to pick out Junior Dos Santos at Thursday's UFC on FOX media workout sessions,
even in a room packed full of media.
After all, the 6-foot-4 Brazilian slugger does tower over most of the crowd, even without shoes. But it was another feature, Dos Santos'
beaming smile, that made it easiest to track the main-event competitor
So when does that change? When does the grin become a grimace? Hopefully never, said the UFC heavyweight title challenger.