Chicagoland Speedway - Day 2

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Mark Martin, driver of the Bass Pro Shops / Mobil 1 Chevrolet,... News PhotoChicagoland Speedway,Driver,Horizontal,Illinois,Joliet,Mark Martin,Motorsport,Practicing,Sport,Sprint Cup Series,Stock Car Racing,USAPhotographer Collection: NASCAR 2013 NASCARJOLIET, IL - SEPTEMBER 14: 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 14, 2013 in Joliet, Illinois. (Photo by Jeff Zelevansky/NASCAR via Getty Images)