An early crash took Dale Earnhardt Jr., Kevin Harvick and a couple of other drivers out of contention Saturday night in the Sprint Unlimited at Daytona International Speedway.
A later crash took out six-time NASCAR Sprint Cup champion Jimmie Johnson.
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The first crash began in the middle of the pack on lap 21 as the field headed into Turn 1. Brian Vickers, subbing in the No. 14 Stewart-Haas Racing Chevrolet for the injured Tony Stewart, appeared to have a right-rear tire go down.