Crew members perform a pit stop on driver Matt Kenseth's car during 

Crew members perform a pit stop on driver Matt Kenseth's car during the NASCAR Sprint Cup series Coca-Cola 600 auto race at Charlotte Motor Speedway in Concord, N.C., Sunday, May 26, 2013. (AP Photo/Nell Redmond)
Associated Press
Crew members perform a pit stop on driver Matt Kenseth's car during the NASCAR Sprint Cup series Coca-Cola 600 auto race at Charlotte Motor Speedway in Concord, N.C., Sunday, May 26, 2013. (AP Photo/Nell Redmond)
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