NASCAR Sprint Cup All-Star Race – Practice

NASCAR Sprint Cup All-Star Race – Practice

CONCORD, NC – MAY 17: Chad Knaus, crew chief for the #48 Lowe’s Patriotic Chevrolet, walks in the garage area during practice for the NASCAR Sprint Cup Series All-Star Race at Charlotte Motor Speedway on May 17, 2013 in Concord, North Carolina. (Photo by Rainier Ehrhardt/Getty Images)

Greg Engle