Newgarden suffered a shunt while leading the second race at Iowa Speedway last Sunday, which Team Penske president Tim Cindric confirmed with Motorsport.com was due to a suspected broken right-rear shock absorber.
While appearing lucid on emerging from the infield medical center, Newgarden later lost consciousness and fell in the motorhome parking lot. He was then taken to a hospital in Des Moines, IA, where he stayed overnight for observation.
