DARLINGTON, SC - SEPTEMBER 04: Ryan Blaney, driver of the #21 Motorcraft/Quick Lane Tire & Auto Center Ford, races Clint Bowyer, driver of the #15 5-hour Energy Chevrolet, during the NASCAR Sprint Cup Series Bojangles' Southern 500 at Darlington Raceway on September 4, 2016 in Darlington, South Carolina. (Photo by Brian Lawdermilk/Getty Images)

DARLINGTON, SC - SEPTEMBER 04: Jeffrey Earnhardt, driver of the #32 Otter Pops/Corvetteparts.net Ford, leads a pack of cars during the NASCAR Sprint Cup Series Bojangles' Southern 500 at Darlington Raceway on September 4, 2016 in Darlington, South Carolina. (Photo by Jonathan Ferrey/Getty Images)

DARLINGTON, SC - SEPTEMBER 04: Brad Keselowski, driver of the #2 Miller Lite Ford, leads a restart during the NASCAR Sprint Cup Series Bojangles' Southern 500 at Darlington Raceway on September 4, 2016 in Darlington, South Carolina. (Photo by Jonathan Ferrey/Getty Images)

DARLINGTON, SC - SEPTEMBER 04: Ryan Newman, driver of the #31 Caterpillar Chevrolet, races Chris Buescher, driver of the #34 Love's Travel Stops Ford, during the NASCAR Sprint Cup Series Bojangles' Southern 500 at Darlington Raceway on September 4, 2016 in Darlington, South Carolina. (Photo by Brian Lawdermilk/Getty Images)

DARLINGTON, SC - SEPTEMBER 04: Kurt Busch, driver of the #41 Haas VF1/Monster Energy Chevrolet, races Chris Buescher, driver of the #34 Love's Travel Stops Ford, during the NASCAR Sprint Cup Series Bojangles' Southern 500 at Darlington Raceway on September 4, 2016 in Darlington, South Carolina. (Photo by Brian Lawdermilk/Getty Images)

DARLINGTON, SC - SEPTEMBER 04: Ned Jarrett during the NASCAR Sprint Cup Series Bojangles' Southern 500 at Darlington Raceway on September 4, 2016 in Darlington, South Carolina. (Photo by Jerry Markland/Getty Images)

DARLINGTON, SC - SEPTEMBER 04: NASCAR Hall of Famer Rex White participates in pre-race festivities for the NASCAR Sprint Cup Series Bojangles' Southern 500 at Darlington Raceway on September 4, 2016 in Darlington, South Carolina. (Photo by Jerry Markland/Getty Images)

DARLINGTON, SC - SEPTEMBER 04: Clint Bowyer, driver of the #15 5-hour Energy Chevrolet, races Chris Buescher, driver of the #34 Love's Travel Stops Ford, during the NASCAR Sprint Cup Series Bojangles' Southern 500 at Darlington Raceway on September 4, 2016 in Darlington, South Carolina. (Photo by Brian Lawdermilk/Getty Images)