The Ravens have reached a one-year agreement with safety Darian Stewart.
Stewart played for the St. Louis Rams for the past four years.
He is scheduled to be in Baltimore on Sunday to take a physical.
The 2010 undrafted player out of South Carolina started six of 13 games last season and notched 36 tackles, four passes defensed and one forced fumble.
Stewart's best season came in 2011 when he started 13 of 15 games, and showed a knack for making plays. He made 91 tackles, three sacks, two forced fumbles and one interception, which he returned for a 27-yard touchdown against Drew Brees and the Saints.
Ravens Assistant Head Coach and Secondary Coach Steve Spagnuolo was the Rams' head coach that year and thus saw Stewart first-hand.
Stewart, 25, was officially listed by the Rams as a strong safety, and measures in at 5-foot-11, 214 pounds.
General Manager Ozzie Newsome said he wanted to add an athletic, playmaking safety to pair with last year's first-round pick Matt Elam. Baltimore would like to move Elam to his natural strong safety position.
Stewart will likely compete to be a starting safety, but the Ravens could still make more moves at the position via free agency or the draft.
Stewart reportedly visited the Carolina Panthers on Monday. He was not offered a contract by the Rams as an unrestricted free agent.