Photos: NASCAR at Darlington Raceway, Friday August 31, 2018

DARLINGTON, SC – AUGUST 31: Chase Elliott, driver of the #9 NAPA Throwback Chevrolet, drives in the garage area during practice for the Monster Energy NASCAR Cup Series Bojangles’ Southern 500 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Jared C. Tilton/Getty Images)

DARLINGTON, SC – AUGUST 31: Joey Logano, driver of the #22 Pennzoil Ford, climbs into his car during practice for the Monster Energy NASCAR Cup Series Bojangles’ Southern 500 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Jared C. Tilton/Getty Images)

DARLINGTON, SC – AUGUST 31: Ross Chastain, driver of the #42 DC Solar Chevrolet, drives during practice for the NASCAR Xfinity Series Sport Clips Haircuts VFW 200 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Jared C. Tilton/Getty Images)

DARLINGTON, SC – AUGUST 31: Kevin Harvick, driver of the #4 Busch Beer Throwback Ford, prepares to climb into his car during practice for the Monster Energy NASCAR Cup Series Bojangles’ Southern 500 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Sarah Crabill/Getty Images)

DARLINGTON, SC – AUGUST 31: Kyle Busch, driver of the #18 Skittles 1998 Retro Toyota, drives during practice for the Monster Energy NASCAR Cup Series Bojangles’ Southern 500 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Jared C. Tilton/Getty Images)

DARLINGTON, SC – AUGUST 31: Kyle Larson, driver of the #42 DC Solar Chevrolet, and Brad Keselowski, driver of the #2 Miller Genuine Draft Ford, talk in the garage during practice for the Monster Energy NASCAR Cup Series Bojangles’ Southern 500 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Sarah Crabill/Getty Images)

DARLINGTON, SC – AUGUST 31: Jimmie Johnson, driver of the #48 Lowe’s Throwback Chevrolet, drives in the garage area during practice for the Monster Energy NASCAR Cup Series Bojangles’ Southern 500 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Jared C. Tilton/Getty Images)

DARLINGTON, SC – AUGUST 31: Brad Keselowski, driver of the #2 Miller Genuine Draft Ford, prepares to climb into his car during practice for the Monster Energy NASCAR Cup Series Bojangles’ Southern 500 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Sarah Crabill/Getty Images)

DARLINGTON, SC – AUGUST 31: Denny Hamlin, driver of the #11 FedEx Throwback Toyota, drives during practice for the Monster Energy NASCAR Cup Series Bojangles’ Southern 500 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Jared C. Tilton/Getty Images)

DARLINGTON, SC – AUGUST 31: Elliott Sadler, driver of the #1 Armour Chili Chevrolet, drives during practice for the NASCAR Xfinity Series Sport Clips Haircuts VFW 200 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Jared C. Tilton/Getty Images)

DARLINGTON, SC – AUGUST 31: Cole Custer, driver of the #00 Haas Automation Ford, sits in his car during practice for the NASCAR Xfinity Series Sport Clips Haircuts VFW 200 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Sarah Crabill/Getty Images)

DARLINGTON, SC – AUGUST 31: Justin Allgaier, driver of the #7 Chevrolet Accessories Chevrolet, drives during practice for the NASCAR Xfinity Series Sport Clips Haircuts VFW 200 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Jared C. Tilton/Getty Images)

DARLINGTON, SC – AUGUST 31: Crew members push the #3 Dow NORKOOL Chevrolet, driven by Austin Dillon, during practice for the Monster Energy NASCAR Cup Series Bojangles’ Southern 500 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Sarah Crabill/Getty Images)

DARLINGTON, SC – AUGUST 31: Jimmie Johnson, driver of the #48 Lowe’s for Pros Chevrolet, sits in his car during practice for the Monster Energy NASCAR Cup Series Bojangles’ Southern 500 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Sarah Crabill/Getty Images)

DARLINGTON, SC – AUGUST 31: A general view of the tire compound during practice for the Monster Energy NASCAR Cup Series Bojangles’ Southern 500 at Darlington Raceway on August 31, 2018 in Darlington, South Carolina. (Photo by Brian Lawdermilk/Getty Images)

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Photos: NASCAR at Darlington Raceway, Friday August 31, 2018