The Ultimate Fighting Championship on Saturday rolls on with an event that has featured a revolving-door headliner. Most of the bouts throughout the night see one favorite at -200 or higher, but there is still room to roam if you play your cards right. Join us for a pair of top-billed underdogs who are worth a look, an underrated grappler on the prelims and a slugfest that has the makings of a quick start to the festivities.