Sebastien Bourdais was on the third lap of his qualifying run when things went wrong on Saturday at the Indianapolis Motor Speedway.
The rear end of his No. 18 Dale Coyne Racing Honda stepped out in Turn 2 and he overcorrected, slamming the outside SAFER barrier head-on.
After hitting the wall, Bourdais' car rolled over as it went down the backstraight. Bourdais had ran at an average speed of 231 mph on his first two qualifying laps.
Bourdais' car ignited as it rolled down the backstraight but the flames quickly subsided as it came to a halt.
Bourdais was awake, alert and never lost consciousness during the crash. He was extracted by the safety crew and placed on a backboard. He was then taken by ambulance to the local Indiana University Methodist Hospital, complaining of a pain in his leg.
Sebastien Bourdais was diagnosed with multiple fractures to his pelvis, as well as a fracture to his right hip. Bourdais will undergo surgery on his pelvis Saturday evening.
Fernando Alonso - who made the Fast Nine - watches the incident on the big screens at the track while signing autographs for the fans. The session was red flagged but later restarted.