Photos: NASCAR at Chicagoland Speedway, Saturday Sept. 15, 2017

JOLIET, IL - SEPTEMBER 16: Martin Truex Jr. drives the #78 Furniture Row/Denver Mattress Toyota during practice for the Monster Energy NASCAR Cup Series Tales of the Turtles 400 at Chicagoland Speedway on September 16, 2017 in Joliet, Illinois. (Photo by Sean Gardner/Getty Images)