Kurt Busch has not been medically cleared to compete this weekend at the Indianapolis Motor Speedway Road Course.
The 23XI Racing driver suffered a crash during qualifying last weekend that left him with concussion-like symptoms. He was subsequently not medically cleared to compete at Pocono Raceway, and Xfinity driver Ty Gibbs filled in for the No. 45.
Gibbs will do so again for the Brickyard 400 on Sunday.
“Kurt’s health is of the utmost importance to the team, and we wish him all the best as he prepares for his return,” 23XI Racing said, in part, in a statement.