Bristol Motor Speedway - Day 1

Keywords

Mark Martin, driver of the Bass Pro Shops / Mobil 1 Chevrolet,... News PhotoAdjusting,Bristol Motor Speedway,Car,Driver,Headwear,Helmet,Horizontal,Mark Martin,Motorsport,Practising,Sport,Sports Helmet,Sprint Cup Series,Stock Car Racing,Tennessee,USAPhotographer Collection: NASCAR 2013 NASCARBRISTOL, TN - AUGUST 23: Mark Martin, driver of the #14 Bass Pro Shops / Mobil 1 Chevrolet, adjusts his helmet in his car during practice for the NASCAR Sprint Cup Series IRWIN Tools Night Race at Bristol Motor Speedway on August 23, 2013 in Bristol, Tennessee. (Photo by John Harrelson/NASCAR via Getty Images)