Photos: NASCAR at Michigan International Speedway and Mid-Ohio Sports Car Course Friday Aug. 10, 2018

LEXINGTON, OH - AUGUST 10: Justin Marks, driver of the #42 Chevrolet Accessories Chevrolet, practices for the NASCAR Xfinity Series Rock N Roll Tequila 170 presented by Amethyst Beverage at Mid-Ohio Sports Car Course on August 10, 2018 in Lexington, Ohio. (Photo by Daniel Shirey/Getty Images)