The United States has some good fighters on the rise: Deontay Wilder is young & untested but at 6'7 with a reach of 84" he's going to have a lot of fans once he hits "the big stage". Joe Hanks is a very good prospect, Seth Mitchell has looked very good for someone late to boxing. Bryant Jennings (although not my "cup of tea") is a solid boxer. Those are just the heavyweights, there's Shawn Porter, Mike Lee, Demetrius Andrade, and of course Adrian Broner will be the one with the "Flashy Flash" who will challenge for P4P #1 status.