CHARLOTTE, N.C. (AP) -- NASCAR has fined Kyle Busch $50,000 and placed him on probation through the end of the year for wrecking Ron Hornaday at Texas.
NASCAR also warned Busch that he will be suspended indefinitely for any further incidents it considers "disruptive to the orderly conduct of an event."
NASCAR suspended Busch for Saturday and Sunday's races at Texas Motor Speedway as punishment for his actions in Friday night's Truck Series race. Busch wrecked Hornaday under caution and admitted after the accident he lost his temper.
Busch then watched Michael McDowell race his No. 18 in the Sprint Cup Series race Sunday while sitting atop the Joe Gibbs Racing pit box.