IRWIN Tools Night Race – Practice

IRWIN Tools Night Race – Practice

BRISTOL, TN – AUGUST 23: Mark Martin, driver of the #14 Bass Pro Shops / Mobil 1 Chevrolet, looks on as his crew prepares 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 Jared C. Tilton/Getty Images)