Nascar Sprint Cup Series

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Brad Keselowski drives during qualifying for Sunday's NASCAR Sprint Cup Series auto race, Friday, March 7, 2014, in Las Vegas. (AP Photo/Isaac Brekken)

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Brad Keselowski drives during qualifying for Sunday's NASCAR Sprint Cup Series auto race, Friday, March 7, 2014, in Las Vegas. (AP Photo/Isaac Brekken)

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Dale Earnhardt Jr. puts on his helmet during qualifying for Sunday's NASCAR Sprint Cup Series auto race on Friday, March 7, 2014, in Las Vegas. (AP Photo/Isaac Brekken)

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Danica Patrick walks down pit row following qualifying for Sunday's NASCAR Sprint Cup Series auto race, Friday, March 7, 2014, in Las Vegas. (AP Photo/Isaac Brekken)

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Kevin Harvick, left, talks with Tony Stewart during qualifying for Sunday's NASCAR Sprint Cup Series auto race on Friday, March 7, 2014, in Las Vegas. (AP Photo/Isaac Brekken)

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Joey Logano poses for photos after winning the pole position for Sunday'S NASCAR Sprint Cup Series auto race, Friday, March 7, 2014, in Las Vegas. (AP Photo/Isaac Brekken)

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Joey Logano poses for photos after winning the pole position for Sunday's NASCAR Sprint Cup Series auto race, Friday, March 7, 2014, in Las Vegas. (AP Photo/Isaac Brekken)