CONCORD, N.C. (AP) - Brad Keselowski snapped a 37-race winless streak Saturday night by chasing down Kasey Kahne in the closing laps at Charlotte Motor Speedway. The defending Sprint Cup champion picked up his first win since Dover of last year. Keselowski led only 11 laps, and passed Kahne with nine to go to get the win in his Penske Racing Ford. The race changed dramatically with 27 laps remaining and Jimmie Johnson seemingly on his way to an easy victory. But a debris caution sent the leaders to pit road and ended Johnson's march to a record seventh Charlotte win. Keselowski restarted in sixth, picked his way through traffic and set his sights on Kahne. But getting past the Hendrick Motorsports driver wasn't easy, and he needed several attempts before making it stick.