SONOMA, Calif. -- Denny Hamlin closed in on a slower car at Sonoma Raceway, changed lanes to make the pass and was instead slammed into from behind -- contact that sent him spinning off the course."Who am I wrecking?" Hamlin asked on his radio to identify which driver had retaliation coming to him.Told the culprit was good friend Tony Stewart, Hamlin quietly went about his day. It ended with a frustrating 23rd-place finish Sunday and another setback in what he had hoped would be a furious charge into the Chase for the Sprint Cup championship. With 10 races remaining to set the field, Hamlin is 25th in the standings and winless.He's in a frantic race to crack the top 20 -- he's currently 83 points out -- and lock up some race wins that would make him eligible to claim a wild-card berth into the Chase. It was the goal he set for himself when he was sidelined four races with a compression fracture in his back; when he returned to full-time competition, Hamlin seemed to be a man on a mission.Hamlin has never missed the Chase in his Cup career, and he had no intention of allowing his injury to be an excuse to come up short this year.