The 2011 Supercross season is still 10 days from the opening race in Anaheim, but it claimed it’s first victim today. The 2010 West Supercross Lites Champion, Jake Weimer, broke his arm while practicing for the opener. He will undergo surgery later today to repair the break. No timetable has been established for his return and discussions on a replacement rider have yet to be held. Stay tuned to Supercross.com for the latest information on Weimer’s injury and all other Supercross news.