DARLINGTON, SC - SEPTEMBER 04: Michael Annett, driver of the #46 Pilot Flying J Chevrolet, and Chris Buescher, driver of the #34 Love's Travel Stops Ford, race in front of 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: A general view of cars racing at sunset 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: Race fans watch the NASCAR Sprint Cup Series Bojangles' Southern 500 as the sun sets at Darlington Raceway on September 4, 2016 in Darlington, South Carolina. (Photo by Jonathan Ferrey/Getty Images)

DARLINGTON, SC - SEPTEMBER 04: Reed Sorenson, driver of the #55 Vydox Plus Chevrolet, 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: Denny Hamlin, driver of the #11 Sport Clips Toyota, 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: A general view as the sun sets 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: Kyle Larson, driver of the #42 Target Chevrolet, pits 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: Brad Keselowski, driver of the #2 Miller Lite Ford, pits 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)