The Ravens announced three roster moves this afternoon, two of which had already been known.
General manager Ozzie Newsome issued a statement about cutting Pollard, who spent the last two years with the Ravens and was their tackles leader in 2012.
"We needed to find a physical presence for our secondary when we lost Dawan Landry a few years ago, and we were fortunate to land a player like Bernard," Newsome stated. "He was everything we hoped he would be: physical, tough and well-prepared. Bernard takes great pride in being ready to play - and he does that year round. He was a good partner with Ed (Reed) on our backside, and he fit in well with our team. Like we say, 'He played like a Raven.' He helped us get to an AFC Championship and win a Super Bowl, and we thank him for all he did for us.
"There are many difficult decisions we make every offseason. They become even more difficult when they involve players who helped us get another Super Bowl trophy."
Ihedigbo is a six-year veteran safety who posted 19 tackles (12 solo) and one sack for the Ravens last season, his first in Baltimore.
Johnson, a cornerback who signed with the Ravens on Nov. 11, played in four regular season games, posting seven solo tackles and one forced fumble.
Update: The Ravens have lost yet another key member of their Super Bowl defense, as cornerback Cary Williams signed a three-year deal worth a reported $17 million with the Philadelphia Eagles.
Williams, 28, spent the last four seasons of his six-year NFL career with Baltimore. He tied a team high with four interceptions while making 75 tackles in 2012, but was routinely beaten on deep routes. He played in 50 of his 55 career games with the Ravens, including all 33 of his NFL starts.
Baltimore has now lost Williams and linebackers Paul Kruger, Dannell Ellerbe and Ray Lewis, cut Pollard and safety Ed Reed is a free agent.