LAS VEGAS, NV - MARCH 03: (L-R) Crew Chief Chad Knous talks with Jimmie Johnson, driver of the #48 Kobalt Chevrolet, in the garage during Testing at Las Vegas Motor Speedway on March 3, 2016 in Las Vegas, Nevada. (Photo by Sean Gardner/NASCAR via Getty Images)
See the full rundown of speeds from Thursday's first round of Sprint Cup Series testing at Las Vegas Motor Speedway in preparation for Sunday's Kobalt 400 (FOX, 3 p.m. ET).
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