NFL suspended Ravens S Christian Thompson four games for violating the league's substance abuse policy.
Ravens S Christian Thompson (knee) said he's fully healthy after being placed on injured reserve last November.
Ravens placed S Christian Thompson (thigh) on season-ending injured reserve and signed S Anthony Levine from the practice squad.
Ravens agreed to terms with No. 130 overall pick S Christian Thompson on a four-year contract.
Ravens selected South Carolina State FS Christian Thompson with the No. 130 overall pick in the 2012 NFL draft.