File-This Feb. 22, 2014 file photo shows comedian Larry the Cable Guy laughs during a news conference at Daytona International Speedway in Daytona Beach, Fla. Larry the Cable Guy who's real name is Daniel Whitney has canceled a couple of upcoming performances in New Mexico and Utah due to an injury on a movie set.(AP Photo/David Graham,File)
FILE - In this Aug. 18, 2013, file photo, Kurt Busch races during the NASCAR Sprint Cup series Pure Michigan 400 auto race at Michigan International Speedway in Brooklyn, Mich. Kurt Busch and Andretti Autosport announced Tuesday, March 4, 2014, that he will try to become the first driver in 10 years to run the Indianapolis 500 and the Coca-Cola 600 on the same day. (AP Photo/Paul Sancya, File)
FILE - In this Feb. 23, 2014 file photo, Dale Earnhardt Jr. celebrates in Victory Lane after winning the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla. As NASCAR heads West for a two-race swing through Phoenix and Las Vegas, the challenge becomes duplicating the Daytona 500 so that the remaining 36 events are half as exciting. (AP Photo/Terry Renna, File)
Driver Tony Stewart greets fans as he is introduced before the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/John Raoux)
10ThingstoSeeSports - Dale Earnhardt Jr. emerges from a cloud of smoke after winning the NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/Phelan M. Ebenhack, File)
Brad Keselowski walks through the garage area during a practice session for the Daytona 500 NASCAR Sprint Cup Series auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Feb. 21, 2014. (AP Photo/John Raoux)
Dale Earnhardt Jr., front, leads the racers to the finish line as Kyle Busch (18) starts a collision coming out of Turn 4 during the NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/Phelan M. Ebenhack)
Kelley Earnhardt Miller, right, celebrates after her brother, Dale Earnhardt Jr, wins the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/Terry Renna)
Dale Earnhardt Jr. celebrates in Victory Lane after winning the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/John Raoux)