Brad Keselowski, driver of the #22 Discount Tire Dodge, spins out after an incident with Kyle Busch, driver of the #18 Z-Line Designs Toyota, during the NASCAR Nationwide Series Food City 250 at Bristol Motor Speedway on August 20.

Keselowski's vast Nationwide Series point lead took a small hit after getting the worst of a skirmish with Busch, who went on to win the Food City 250. Busch's Toyota and Keselowski's Dodge made contact twice, but the latter incident, apparently initiated by Busch, sent Keselowski's car into the wall. Busch was unrepentant afterwards, and the following night, during Sprint Cup driver introductions, Keselowski played to the anti-Busch sentiment in the grandstands by describing his rival in an untidy manner over the track's public-address system.

My take: In his various rivalries, Keselowski is hampered by the fact that he isn't yet competitive at the Sprint Cup level on a race-to-race basis. In time, these will probably be played out on a grander stage.