Tony Stewart

Injured Tony Stewart to miss start of final NASCAR season

CHARLOTTE, N.C. (AP) — Tony Stewart will miss the start of his final NASCAR season after fracturing his back in an accident on an all-terrain vehicle, Stewart-Haas Racing said Thursday.

The three-time NASCAR champion sustained a "burst fracture of the L1 vertebra" when he crashed on an ATV Sunday and he had surgery Wednesday, the team said. A timetable for Stewart's return has not been determined, but SHR said he is expected to make a full recovery and race this year.

Drivers report to Daytona next week to begin preparations for the season-opening Daytona 500 on Feb. 21. An interim driver for the No. 14 Chevrolet was not named Thursday.

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Coroner rules out driver, trainer error in Edwards death

BRISBANE, Australia (AP) — A coronial inquest into the death of British racing driver Sean Edwards at an Australian speedway in 2013 has found that mechanical failure caused the accident.

Edwards, the son of ex-Formula One driver Guy Edwards, was in the passenger seat as an instructor for a private training session at Queensland Raceway near Brisbane when the 966 Porsche crashed into a barrier at high speed and caught fire.

Queensland state's deputy coroner John Lock delivered his findings Friday, ruling out human error or trainer error, saying the accident in October, 2013, was caused by an unknown mechanical failure.