Kyle Busch's interim crew chief faces race ban

After his fifth-place finish in Sunday's Toyota Save / Mart 350 at Sonoma Raceway, NASCAR officials found the left rear on Kyle Busch's No. 18 Toyota Camry was missing two lug nuts, meaning another suspension could be handed down to his Joe Gibbs Racing team this week.

The team is already without crew chief Adam Stevens, tire changer Jacob Seminara and tire carrier Kenneth Barber, who are serving suspensions through July 3 for the the left-rear wheel coming off the car during the race at Dover. Engineer Ben Beshore took over as interim crew chief and is now facing a one-race ban.

Busch realized later on that there were indeed two lug nuts missing.