Geico 400 – Practice

Geico 400 – Practice

JOLIET, IL – SEPTEMBER 13: Mark Martin, driver of the #14 Bass Pro Shops / Mobil 1 Chevrolet, practices for the NASCAR Sprint Cup Series Geico 400 at Chicagoland Speedway on September 13, 2013 in Joliet, Illinois. (Photo by Sean Gardner/Getty Images)

Greg Engle