By Thomas Neumann Ty Gibbs will replace Busch in the No. 45 car in Sunday’s M&M;’s Fan Appreciation 400. View the original article to see embedded media. NASCAR star Kurt Busch has been ruled out for Sunday’s M&M’s Fan Appreciation 400 at Pocono Raceway. A day after crashing during a qualifying run, Busch said in a social media post that he was still experiencing concussion-like symptoms. NASCAR doctors evaluated Busch on Sunday morning but didn’t clear him to compete in the afternoon Cup Series race on the Tricky Triangle. Instead, Ty Gibbs will replace Busch in the No. 45 car for 23XI Racing…