Noah Gragson, who suffered a big hit last weekend at World Wide Technology Raceway at Gateway when a brake rotor exploded on his car at Lap 197, will not compete in this weekend’s NASCAR Cup Series Toyota / Save Mart 350 at Sonoma Raceway. Gragson, 24, started experiencing concussion-like symptoms mid-week, according to LEGACY MOTOR … Continue reading Noah Gragson Out Due to Concussion-Like Symptoms; Grant Enfinger to Fill-In