NASCAR Sprint Cup Series: Daytona 500-Practice

USA TODAY Sports
NASCAR Sprint Cup Series: Daytona 500-Practice
Feb 20, 2013; Daytona Beach, FL, USA; Chad Knaus crew chief for Sprint Cup Series driver Jimmie Johnson (left) during practice for the Daytona 500 at Daytona International Speedway. (Kevin Liles-USA TODAY Sports)
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