MARTINSVILLE, Va.—Brad Keselowski moved to Team Penske to become a NASCAR champion and industry leader. He achieved his first goal in 2012 when he won the Cup title, the first for team owner Roger Penske in NASCAR competition. Keselowski also earned Penske’s 500th victory and in 2019 passed Mark Donohue as the winningest driver in Penske history. Keselowski’s time with the Penske organization is in its final two-race stretch, and he’d like nothing more than to leave with a second Cup title. To grab that one final trophy on his way out the door, Keselowski will have to race his way into the championship finale on Sunday at Martinsville Speedway. He’s six points below the cutline with three spots up for grabs at Martinsville. Kyle Larson is the only driver already qualified for the winner-take-all Nov. 7 title-deciding finale at Phoenix. Keselowski doesn’t have to win Martinsville to earn one …