The Ravens signed veteran LBs Darryl Blackstock and Ricky Brown, and OG Cord Howard the team announced Wednesday.
Blackstock spent the 2011 season with the Raiders. He played in 16 games with one start and made 20 tackles.
From 2005-07, Blackstock played for the Cardinals, playing in 46 games. He spent the ’08 season with the Bengals and started four games. Blackstock did not play in 2009-10.
Brown, 28, spent six seasons in Oakland. He played in only three games last season due to injury. In 2010, he played in 14 games with one start and made 13 tackles, one pass defensed and one forced fumble.
Howard played in 10 games with four starts for the Bills in 2010 and was on injured reserve last year with a shoulder injury.