Exploring the tragic life of LeeRoy Yarbrough, one of the greatest NASCAR drivers who ultimately succumbed to head injuries.

The story ended with many PDA drivers — led by Richard Petty — refusing to compete in the inaugural Talladega 500 and, reportedly, a mark left by a punch from driver LeeRoy Yarbrough.

The tension between NASCAR President and Talladega visionary Bill France, who was the farthest thing from a union man imaginable, and the PDA resulted in driver LeeRoy Yarbrough landing a punch on ...