Following the news that Ryan Newman was treated and released from Halifax Medical Center on Wednesday, Roush Fenway Racing announced Ross Chastain will fill his seat, beginning with this weekend’s NASCAR Cup Series race at Las Vegas Motor Speedway.



Chastain competes full-time in the Xfinity Series for Kaulig Racing, which he will do concurrently as he substitutes for Newman. Because Kaulig is a Chevrolet-supported team and Roush Fenway is Ford-backed, both manufacturers had to sign off on the deal.



In a statement Wednesday, Roush Fenway said there currently is no timetable for Newman’s return. It is not known for how many races Chastain will substitute in the No. 6 Ford.



“First and foremost, our focus remains with Ryan and his family as he continues to recover,” said Roush Fenway president Steve Newmark. “We also want to express our sincere gratitude to all of those who have offered support and taken the time to send their...