• In this Thursay, Jan. 21, 2016, file photo, Stewart Haas Racing co-owner and driver Tony Stewart talks to members of the media during the NASCAR Charlotte Motor Speedway Media Tour in Charlotte, N.C. The three-time NASCAR champion has been hospitalized with a back injury after a non-racing accident on Sunday and Stewart-Haas Racing is unsure of the extent of his injuries, a team spokesman told The Associated Press, Tuesday, Feb. 2, 2016. (AP Photo/Mike McCarn, File)

    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.

  • In this Oct. 24, 2015, file photo, driver Tony Stewart (14) unbuckles from his car after qualifying for the NASCAR Sprint Cup Series auto race at Talladega Superspeedway in Talladega, Ala. The three-time NASCAR champion has been hospitalized with a back injury after a non-racing accident on Sunday and Stewart-Haas Racing is unsure of the extent of his injuries, a team spokesman told The Associated Press, Tuesday, Feb. 2, 2016. (AP Photo/ Mark Almond, File)

    NASCAR champion Tony Stewart hospitalized with back injury

    CHARLOTTE, N.C. (AP) — Three-time NASCAR champion Tony Stewart was hospitalized Tuesday with a back injury and Stewart-Haas Racing said the team was unsure of the extent of his injuries just a week before he is expected in Daytona to prepare for his final season in Sprint Cup.