Penske Racing team is likely to have every bolt tight, every connection triple-checked and every system firmly in place Sunday with the hope of avoiding mechanical troubles. That doesn't eliminate the possibility of accidents, but the team has been remarkably consistent in the Chase, scoring a pair of wins and finishing in the top 10 in every race except one -- and that was an 11th at Charlotte. Johnson, meanwhile, has a 17th at Talladega and a 32nd Sunday at Phoenix after blowing a right front tire and slamming the wall. Those two races have stained his Chase, which otherwise holds a pair of wins and a pair of seconds. "We still have to go to Homestead and race, and anything can happen down there," Johnson said. "But it's not the position you want to be in leaving Phoenix." Keselowski was upset about the style of racing and the resulting mayhem over the final laps at Phoenix, but, bottom line, he left town with a 20-point edge and a championship all but within his grasp. With one race to go, Bad Brad is bad, indeed. Mike Hembree is NASCAR Editor for SPEED.com and has been covering motorsports for 30 years. He is a six-time winner of the National Motorsports Press Association Writer of the Year Award.