Reigning NASCAR champion Kevin Harvick shrugged off his critics Tuesday and insisted he did not intentionally cause a wreck near the end of the race at Talladega Superspeedway to preserve his spot in the playoffs and keep his bid for a repeat alive. NASCAR said Tuesday a review of the incident failed to show Harvick did anything intentional, and he also dismissed the claims. You can't roll over and be done with it and say, 'We tried our best,''' Harvick said. More...