NASCAR has issued a clarification to its rulebook after Christoper Bell stopped in his teammate’s pit box during last weekend's Cup Series race at Las Vegas to tighten a wheel.

NASCAR has clarified the rule about pitting in another team’s stall after Christopher Bell’s move at Las Vegas. The governing body said if it happens, the car will receive a “flag status penalty.” “If a vehicle receives service in another team’s pit stall in an effort to correct a safety issue,