Martinsville Speedway - Day 1

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Dale Earnhardt Jr., driver of the Diet Mountain Dew Chevrolet, during... News PhotoDale Earnhardt Jr.,Driver,Horizontal,Martinsville Speedway,Motorsport,Practicing,Ridgeway - Virginia,Sport,Sprint Cup Series,Stock Car Racing,USAPhotographer Collection: NASCAR 2013 NASCARRIDGEWAY, VA - APRIL 05: Dale Earnhardt Jr., driver of the #88 Diet Mountain Dew Chevrolet, during practice for the NASCAR Sprint Cup Series STP Gas Booster 500 on April 5, 2013 at Martinsville Speedway in Ridgeway, Virginia. (Photo by Tom Pennington/NASCAR via Getty Images)