Pure Michigan 400 – Practice

Pure Michigan 400 – Practice

BROOKLYN, MI – AUGUST 18: Crew members work on the #88 National Guard/Diet Mountain Dew Chevrolet, driven by Dale Earnhardt Jr., after he was involved in an on track incident during practice for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 18, 2012 in Brooklyn, Michigan. (Photo by Jared C. Tilton/Getty Images)

Greg Engle