08 March 2013: Chad Knauss, Crew Chief of Jimmie Johnson's (48) Hendrick Motorsports Lowes Chevrolet Impala SS signs an autograph during a rain delay on Stratosphere Pole Day prior to the NASCAR Sprint Cup KOBALT Tools 400 at Las Vegas Motor Speedway in Las Vegas, NV.
Photographer: Jeff Speer/Icon Sportswire
File Size: 2.24 MB @ 300dpi
Image Size: 2000 x 3000
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