Nigel Mansell's crash that put his Beechdean Ginetta out of the Le Mans 24 Hours has been put down to a slow puncture.
The 1992 Formula 1 world champion was just four laps into the race when his car pitched sideways into the wall between Mulsanne Corner and Indianapolis.
The accident caused a half-hour safety car period while Mansell was extricated from the car and taken to the circuit's medical facility.
He suffered a concussion in the crash but was released from the medical centre and has returned home.
Beechdean team principal Andrew Howard said: "We are very relieved to report that though Nigel is very sore, he is okay. The data from the car has shown that the cause was a slow puncture to the rear left tyre."