Motorcross riders Drew Hopkins, Ryder DiFrancesceo, Carson Mumford,... News PhotoAppearance,Arts Culture and Entertainment,Autographing,Celebration,Extreme Sports,Horizontal,Las Vegas,Motocross,Motorcycle Racing,Nevada,Planet Hollywood Resort and Casino,Portrait,Riding,Robbie Maddison,Signing,Sport,Store,Supercross,USA,Waist UpPhotographer Collection: Getty Images Entertainment 2013 Steven LawtonLAS VEGAS, NV - MAY 02: Motorcross riders (front L-R) Drew Hopkins, Ryder DiFrancesceo, Carson Mumford, Tyler Bereman, Trey Canard, (back L-R) Dalton Bailey, Chris Plouffe, Mitch Alcorn, Kyle Regal, Robbie Maddison and Malcolm Stewart pose before they sign autographs during a DC Moto Team appearance in celebration of the 2013 AMA Supercross Finals at the DC Shoes store at Planet Hollywood Resort & Casino on May 2, 2013 in Las Vegas, Nevada. (Photo by Steven Lawton/Getty Images)