Monster Energy NASCAR Cup Series Kobalt 400 – Practice

Monster Energy NASCAR Cup Series Kobalt 400 – Practice

LAS VEGAS, NV – MARCH 10: Jimmie Johnson, driver of the #48 Kobalt Chevrolet, talks with crew chief Chad Knaus during practice for the NASCAR Monster Energy NASCAR Cup Series Kobalt 400 at Las Vegas Motor Speedway on March 10, 2017 in Las Vegas, Nevada. (Photo by Chris Graythen/Getty Images)