Photos: NASCAR at Darlington Raceway, Sunday, Sept. 3, 2017

DARLINGTON, SC - SEPTEMBER 03: Kevin Harvick, driver of the #4 Busch Beer Throwback Ford, and Martin Truex Jr., driver of the #78 BassProShops/TrackerBoats40thAnv Toyota, lead the field under pace laps prior to the start of the Monster Energy NASCAR Cup Series Bojangles' Southern 500 at Darlington Raceway on September 3, 2017 in Darlington, South Carolina. (Photo by Jared C. Tilton/Getty Images)