KANSAS CITY, Mo. — Former Kansas City Chiefs assistant coach Britt Reid was sentenced Tuesday to three years in prison for driving while intoxicated and causing a 2021 crash that severely injured a 5-year-old girl. Reid, who is the son of Chiefs head coach Andy Reid, had pleaded guilty to a single felony charge of driving while intoxicated, causing serious injury, for the Feb. 4, 2021, crash. During the hearing, he spoke directly to Ariel Young, who is now 6, and her family, who were in the courtroom. “Every time I see my daughter, I think about Ariel and how my decision affected her so deeply…