Former Detroit Lions receiver Titus Young pleaded guilty Tuesday in San Diego County Superior Court to one count of assault likely to produce great bodily harm. Young, a Los Angeles native, was immediately sentenced to two years in state prison, according to a spokeswoman for the San Diego County district attorney. The term will run concurrently with the four-year sentence he is serving at the California Rehabilitation Center in Norco for an assault in L.A. in early 2016. Tuesday’s plea stems from a series of incidents in downtown Carlsbad on Feb. 1. A police report said Young hounded a clothing store employee for drugs. Another call came in a half-hour later from the Pizza Port Brewing Co.