COMING UP: Dangerous Medicine, Tonight At 10 (Watch Preview)


Levi Leipheimer of the USA riding for Team Radioshack takes the podium following stage six as he defended the overall leader's jersey and won the general classification of the 2011 USA Pro Cycling Challenge on August 28, 2011 in Denver.  (Photo by Doug Pensinger/Getty Images)

Leipheimer Plans To Defend Title At USA Pro Challenge

Reigning Tour de France champion Cadel Evans, American star Levi Leipheimer and several of the world’s top cyclists will roll off the start line at the USA Pro Challenge in Colorado next month.