BROOKLYN, MI - AUGUST 28: Jeffrey Earnhardt, driver of the #32 KeenParts.com/CorvetteParts.net Ford, signs autographs prior to the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 28, 2016 in Brooklyn, Michigan. (Photo by Sean Gardner/Getty Images)

BROOKLYN, MI - AUGUST 28: Brad Keselowski, driver of the #2 Miller Lite Ford, signs autographs during pre-race festivities for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 28, 2016 in Brooklyn, Michigan. (Photo by Sean Gardner/Getty Images)

BROOKLYN, MI - AUGUST 28: Fans get autographs during pre-race festivities for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 28, 2016 in Brooklyn, Michigan. (Photo by Sean Gardner/Getty Images)

BROOKLYN, MI - AUGUST 28: Martin Truex Jr, driver of the #78 Furniture Row/Denver Mattress Toyota, signs autographs during pre-race festivities for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 28, 2016 in Brooklyn, Michigan. (Photo by Sean Gardner/Getty Images)

BROOKLYN, MI - AUGUST 28: Jeffrey Earnhardt, driver of the #32 KeenParts.com/CorvetteParts.net Ford, signs autographs prior to the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 28, 2016 in Brooklyn, Michigan. (Photo by Sean Gardner/Getty Images)

BROOKLYN, MI - AUGUST 28: Danica Patrick, driver of the #10 Aspen Dental Chevrolet, signs autographs prior to the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 28, 2016 in Brooklyn, Michigan. (Photo by Sean Gardner/Getty Images)

BROOKLYN, MI - AUGUST 28: (L-R) Detroit Red Wings head coach, Jeff Blashill, speaks with Michael Annett, driver of the #46 Pilot Flying J Chevrolet, after a press conference at the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 28, 2016 in Brooklyn, Michigan. (Photo by Matt Sullivan/Getty Images)

BROOKLYN, MI - AUGUST 28: Kyle Busch, driver of the #18 Interstate Batteries Toyota, signs autographs during pre-race festivities for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 28, 2016 in Brooklyn, Michigan. (Photo by Sean Gardner/Getty Images)