JOLIET, IL - SEPTEMBER 17: Carl Edwards, driver of the #19 Stanley Toyota, sits in his car during practice for the NASCAR Sprint Cup Series Teenage Mutant Ninja Turtles 400 at Chicagoland Speedway on September 17, 2016 in Joliet, Illinois. (Photo by Sean Gardner/Getty Images)

JOLIET, IL - SEPTEMBER 17: Alex Bowman, driver of the #88 Axalta Chevrolet, looks on during practice for the NASCAR Sprint Cup Series Teenage Mutant Ninja Turtles 400 at Chicagoland Speedway on September 17, 2016 in Joliet, Illinois. (Photo by Jonathan Daniel/Getty Images)

JOLIET, IL - SEPTEMBER 17: Kevin Harvick, driver of the #4 Jimmy John's Chevrolet, sits in the garage with his son Keelan prior to practice for the NASCAR Sprint Cup Series Teenage Mutant Ninja Turtles 400 at Chicagoland Speedway on September 17, 2016 in Joliet, Illinois. (Photo by Sean Gardner/Getty Images)

JOLIET, IL - SEPTEMBER 17: Carl Edwards, driver of the #19 Stanley Toyota, sits in his car during practice for the NASCAR Sprint Cup Series Teenage Mutant Ninja Turtles 400 at Chicagoland Speedway on September 17, 2016 in Joliet, Illinois. (Photo by Sean Gardner/Getty Images)

JOLIET, IL - SEPTEMBER 17: Denny Hamlin, driver of the #11 FedEx Express Toyota, climbs into his car during practice for the NASCAR Sprint Cup Series Teenage Mutant Ninja Turtles 400 at Chicagoland Speedway on September 17, 2016 in Joliet, Illinois. (Photo by Sean Gardner/Getty Images)

JOLIET, IL - SEPTEMBER 17: Kevin Harvick, driver of the #4 Jimmy John's Chevrolet, gives his son Keelan "knuckles" prior to practice for the NASCAR Sprint Cup Series Teenage Mutant Ninja Turtles 400 at Chicagoland Speedway on September 17, 2016 in Joliet, Illinois. (Photo by Sean Gardner/Getty Images)

JOLIET, IL - SEPTEMBER 17: Tony Stewart, driver of the #14 Rush Truck Centers/Mobil 1 Chevrolet, and Kurt Busch, driver of the #41 Haas Automation Chevrolet, stand in the garage area during practice for the NASCAR Sprint Cup Series Teenage Mutant Ninja Turtles 400 at Chicagoland Speedway on September 17, 2016 in Joliet, Illinois. (Photo by Robert Laberge/Getty Images)

JOLIET, IL - SEPTEMBER 17: Denny Hamlin, driver of the #11 FedEx Express Toyota, looks on from his car during practice for the NASCAR Sprint Cup Series Teenage Mutant Ninja Turtles 400 at Chicagoland Speedway on September 17, 2016 in Joliet, Illinois. (Photo by Sean Gardner/Getty Images)