Three Joe Gibbs Racing cars will drop to the rear of the field at the start of Sunday’s FireKeepers Casino 400 (2 p.m. ET, FOX, MRN, SiriusXM) because of inspection issues at Michigan International Speedway.
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The No. 18 Toyota of Monster Energy NASCAR Cup Series points leader Kyle Busch, the No. 11 Toyota of Denny Hamlin and the No. 20 Toyota of Erik Jones all failed pre-race inspection because of unapproved splitters.
All three cars will drop to the back of the 39-car field during pace laps. Busch was scheduled to start third, Jones eighth and Hamlin 10th.