DARLINGTON, SOUTH CAROLINA - SEPTEMBER 05: Denny Hamlin, driver of the #11 Sport Clips Haircuts Toyota, looks on during practice for the NASCAR Cup Series Cook Out Southern 500 at Darlington Raceway on September 05, 2026 in Darlington, South Carolina. (Photo by Meg Oliphant/Getty Images)

DARLINGTON, SOUTH CAROLINA - SEPTEMBER 05: Denny Hamlin, driver of the #11 Sport Clips Haircuts Toyota, looks on during practice for the NASCAR Cup Series Cook Out Southern 500 at Darlington Raceway on September 05, 2026 in Darlington, South Carolina. (Photo by Meg Oliphant/Getty Images)

DARLINGTON, SOUTH CAROLINA - SEPTEMBER 05: A digital sign displays a thunderstorm warning during practice for the NASCAR Cup Series Cook Out Southern 500 at Darlington Raceway on September 05, 2026 in Darlington, South Carolina. (Photo by James Gilbert/Getty Images)

DARLINGTON, SOUTH CAROLINA - SEPTEMBER 05: Austin Cindric, driver of the #2 Discount Tire Ford, (R) speaks to Joey Logano, driver of the #22 Pennzoil Ultra Platinum Ford, during practice for the NASCAR Cup Series Cook Out Southern 500 at Darlington Raceway on September 05, 2026 in Darlington, South Carolina. (Photo by Meg Oliphant/Getty Images)

DARLINGTON, SOUTH CAROLINA - SEPTEMBER 05: Joey Logano, driver of the #22 Pennzoil Ultra Platinum Ford, looks on during practice for the NASCAR Cup Series Cook Out Southern 500 at Darlington Raceway on September 05, 2026 in Darlington, South Carolina. (Photo by Meg Oliphant/Getty Images)

DARLINGTON, SOUTH CAROLINA - SEPTEMBER 05: Todd Gilliland, driver of the #34 Ruedebusch Ford, looks on during practice for the NASCAR Cup Series Cook Out Southern 500 at Darlington Raceway on September 05, 2026 in Darlington, South Carolina. (Photo by Meg Oliphant/Getty Images)

DARLINGTON, SOUTH CAROLINA - SEPTEMBER 05: Todd Gilliland, driver of the #34 Ruedebusch Ford, looks on during practice for the NASCAR Cup Series Cook Out Southern 500 at Darlington Raceway on September 05, 2026 in Darlington, South Carolina. (Photo by Meg Oliphant/Getty Images)

DARLINGTON, SOUTH CAROLINA - SEPTEMBER 05: Austin Hill, driver of the #33 Morgan & Morgan Chevrolet, looks on during practice for the NASCAR Cup Series Cook Out Southern 500 at Darlington Raceway on September 05, 2026 in Darlington, South Carolina. (Photo by Meg Oliphant/Getty Images)