Four-time series champion Scott Dixon crashed in Indycar's final test session at IMS Raceway on Sunday.
The 37-year-old Kiwi has established himself as one of the modern day greats of the sport and has rarely made mistakes that have resulted in crashes during his 18-year Indycar career.
"It was our second or third lap out of the pits," Dixon said. "A couple of the Andretti cars got by and were a little bit slower.
"I got low in [Turns] 1 and 2, touched the throttle and had a bit of a run and lost the rear. Kind of late in the corner, but just touched with the rear and bent the left-rear suspension."
Indianapolis 500 winner Takuma Sato posted the fastest time of the day, narrowly eclipsing Australian Will Power and Brazilian Tony Kanaan.
