Sonoma Raceway - Day 1

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A view of the helmet for Dale Earnhardt Jr. , driver of the National... News PhotoAuto Repair Shop,California,Chevrolet,Dale Earnhardt Jr.,Driver,Headwear,Helmet,Horizontal,Infineon Raceway,Motorsport,National Guard,Practicing,Sonoma,Sonoma County,Sport,Sports Helmet,Sprint Cup Series,Stock Car Racing,Toyota,Toyota/Save Mart 350,USAPhotographer Collection: NASCAR 2013 NASCARSONOMA, CA - JUNE 21: A view of the helmet for Dale Earnhardt Jr. (not pictured), driver of the #88 National Guard Chevrolet, in the garage during practice for the NASCAR Sprint Cup Series Toyota/Save Mart 350 at Sonoma Raceway on June 21, 2013 in Sonoma, California. (Photo by Todd Warshaw/NASCAR via Getty Images)