Busch was injured late in Saturday's race when his car slammed head-on into an interior wall at Daytona International Speedway. He was only able to climb halfway through his window and was pointing in the direction of his right leg when rescue personnel arrived.
Busch was pulled from the car and laid on the ground, and his leg appeared to be stabilized in a splint before he was placed on a stretcher then into an ambulance. He was transported to a hospital, and NASCAR announced roughly an hour later that Busch won't participate Sunday in the Sprint Cup Series' season-opening Daytona 500.
Joe Gibbs Racing did not immediately announce a replacement for the No. 18 Toyota.
As Busch was being treated in a hospital, older brother Kurt was in front of NASCAR's final appeals officer trying to get his indefinite suspension lifted.
Even if Busch wins the appeal, his Stewart-Haas Racing team appeared set to use Regan Smith in the Daytona 500 — meaning the race would go on without one of the Busch brothers for the first time since 2000.
