AAA 400

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Dale Earnhardt Jr., driver of the National Guard Chevrolet, and Matt... News PhotoChevrolet,Dale Earnhardt Jr.,Dover - Delaware,Dover International Speedway,Driver,Horizontal,Leading,Matt Kenseth,Motorsport,National Guard,Sport,Sprint Cup Series,Stock Car Racing,Toyota,USAPhotographer Collection: Getty Images Sport 2013 Getty ImagesDOVER, DE - SEPTEMBER 29: Dale Earnhardt Jr., driver of the #88 National Guard Chevrolet, and Matt Kenseth, driver of the #20 Home Depot 'Let's Do This' Toyota, lead the field at the start of the NASCAR Sprint Cup Series AAA 400 at Dover International Speedway on September 29, 2013 in Dover, Delaware. (Photo by Jerry Markland/Getty Images)