NASCAR on Monday fined Kyle Busch $50,000 and placed him on probation through the rest of the year for his retaliatory actions during Friday night's Truck Series race at Texas Motor Speedway. The penalty came on the heels of the Joe Gibbs Racing driver being parked for Saturday's Nationwide Series race and Sunday's Sprint Cup race at TMS. Read more: http://espn.go.com/racing/nascar/st...-fined-50k-nascar-trucks-action-put-probation