Dario Franchitti, the three-time Indianapolis 500 champion who also competed in NASCAR and GRAND-AM Road Racing over the course of a varied career, announced Thursday he would stop driving on the advice of doctors following injuries suffered in an open-wheel crash last month. Franchitti , 40, suffered two broken back vertebrae, a fractured right ankle and a concussion in a crash where his car went airborne and into the catchfence during a street race in Houston. Thursday, the Chip Ganassi Racing driver released a statement saying doctors have advised him against continuing to compete. "One month removed from the crash and based upon the expert advice of the doctors who have treated and assessed my spinal injuries post-accident, it is their best medical opinion that I must stop racing," he said. More...