Photos: NASCAR at Las Vegas Motor Speedway, Saturday March 3, 2018

LAS VEGAS, NV – MARCH 03: Alex Bowman, driver of the #88 Nationwide Chevrolet, sits in his car during practice for the Monster Energy NASCAR Cup Series Pennzoil 400 presented by Jiffy Lube at Las Vegas Motor Speedway on March 3, 2018 in Las Vegas, Nevada. (Photo by Robert Laberge/Getty Images)

LAS VEGAS, NV – MARCH 03: Crew members push the #11 FedEx Office Toyota during practice for the Monster Energy NASCAR Cup Series Pennzoil 400 presented by Jiffy Lube at Las Vegas Motor Speedway on March 3, 2018 in Las Vegas, Nevada. (Photo by Sarah Crabill/Getty Images)

LAS VEGAS, NV – MARCH 03: Daniel Suarez, driver of the #19 Coca-Cola Toyota, talks to crew members during practice for the Monster Energy NASCAR Cup Series Pennzoil 400 presented by Jiffy Lube at Las Vegas Motor Speedway on March 3, 2018 in Las Vegas, Nevada. (Photo by Robert Laberge/Getty Images)

LAS VEGAS, NV – MARCH 03: Kyle Larson, driver of the #42 DC Solar Chevrolet, leads Christopher Bell, driver of the #20 Rheem-Smurfit Kappa Toyota, during the NASCAR Xfinity Series Boyd Gaming 300 at Las Vegas Motor Speedway on March 3, 2018 in Las Vegas, Nevada. (Photo by Sarah Crabill/Getty Images)

LAS VEGAS, NV – MARCH 03: Ryan Blaney, driver of the #22 Fitzgerald Glider Kits Ford, leads a pack during the NASCAR Xfinity Series Boyd Gaming 300 at Las Vegas Motor Speedway on March 3, 2018 in Las Vegas, Nevada. (Photo by Sarah Crabill/Getty Images)

LAS VEGAS, NV – MARCH 03: Christopher Bell, driver of the #20 Rheem-Smurfit Kappa Toyota, and Elliott Sadler, driver of the #1 OneMain Financial Chevrolet, race during the NASCAR Xfinity Series Boyd Gaming 300 at Las Vegas Motor Speedway on March 3, 2018 in Las Vegas, Nevada. (Photo by Sean Gardner/Getty Images)

LAS VEGAS, NV – MARCH 03: Kyle Larson, driver of the #42 DC Solar Chevrolet, takes the checkered flag to win the NASCAR Xfinity Series Boyd Gaming 300 at Las Vegas Motor Speedway on March 3, 2018 in Las Vegas, Nevada. (Photo by Robert Laberge/Getty Images)

LAS VEGAS, NV – MARCH 03: Christopher Bell, driver of the #20 Rheem-Smurfit Kappa Toyota, and Kyle Larson, driver of the #42 DC Solar Chevrolet, take the green flag to start the NASCAR Xfinity Series Boyd Gaming 300 at Las Vegas Motor Speedway on March 3, 2018 in Las Vegas, Nevada. (Photo by Robert Laberge/Getty Images)

LAS VEGAS, NV – MARCH 03: Kyle Larson, driver of the #42 DC Solar Chevrolet, leads a pack of cars during the NASCAR Xfinity Series Boyd Gaming 300 at Las Vegas Motor Speedway on March 3, 2018 in Las Vegas, Nevada. (Photo by Sean Gardner/Getty Images)

LAS VEGAS, NV – MARCH 03: Kyle Larson, driver of the #42 DC Solar Chevrolet, celebrates in victory lane after winning the NASCAR Xfinity Series Boyd Gaming 300 at Las Vegas Motor Speedway on March 3, 2018 in Las Vegas, Nevada. (Photo by Brian Lawdermilk/Getty Images)

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Photos: NASCAR at Las Vegas Motor Speedway, Saturday March 3, 2018