The news hasn’t been officially released yet, but inside sources say that Ryan Villopoto suffered a broken leg in his St. Louis crash. That means Ryan Dungey, who won his fifth race in St. Louis, has mathematically clinched the 2010 AMA Supercross title. Congrats to Dungey, the first rookie to win the championship since Jermey McGrath, and his Rockstar/Makita Suzuki crew. And here’s to wishing for a quick recovery to Villopoto. Here’s amateur video of Villopoto’s nasty crash.

Andrew Short (3rd), winner Ryan Dungey and Kevin Windham (2nd) celebrate on the podium at the St. Louis Supercross. (Larry Lawrence photo)