Missouri suffered a significant blow in fall camp when it lost talented edge rusher Darris Smith to a knee injury that will sideline him for the rest of the season. Coach Eli Drinkwitz is taking the injury particularly hard. The Missouri head coach explained Tuesday that he feels bad because he was partially responsible for the injury. “Really disappointed for Darris and kick myself every day because at the end of the day as the head coach I’m responsible for designing the practice,” Drinkwitz said. “Wish I would have done something different that day.” Darris Smith transferred to Missouri thi…