5 things to know about what's going on at Daytona

Parker Kligerman (30) slides on his roof after crashing during practice for Sunday's NASCAR Daytona 500 Sprint Cup Series auto race at Daytona International Speedway, Wednesday, Feb. 19, 2014 ,as Dave Blaney (77) drives past. (AP Photo/News-Journal, Nigel Cook)

Parker Kligerman (30) slides on his roof after crashing during practice for Sunday's NASCARDaytona 500 Sprint Cup Series auto race at Daytona International Speedway, Wednesday, Feb. 19, 2014 ,as Dave Blaney (77) drives past. (AP Photo/News-Journal, Nigel Cook)

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