With the way the UFC is going, the young guys can't come up fast enough.
Rampant injuries, suspensions, personality deficits, the fading of the Golden Age fighters and all sorts of other wacky stuff has probably left MMA matchmakers wishing for a fast forward button, not to mention a gallon or 12 of the establishment's finest rotgut.
The good news is, with the way the sport is growing and changing, the cavalry is coming. More than a few very promising young guns already dot the MMA landscape. The bad news is, if you define "young gun" as someone 25 years old or younger, as we've done here, the best one is Jon Jones. Just kidding. Jon Jones is the awesomest.
These are the 15 best fighters in the sport today who have a quarter century or less of livin' under their belts.