During the wild Las Vegas NASCAR Cup Series race, Austin Dillon went off on Brad Keselowski over the radio. But why?

Austin Dillon learned early that NASCAR’s unwritten rules carry consequences. During a Brickyard 400 race at Indianapolis Motor Speedway, three-time Cup Series champion Tony Stewart delivered a ...

Brad Moran, Managing Director of the NASCAR Cup Series, says the sanctioning body will be looking at the early-race incident between Austin Cindric and Ty Dillon to see if any penalties are necessary.