The Baltimore Ravens are among three teams interested in Steelers free-agent quarterback Dennis Dixon, according to the St. Louis Post-Dispatch. The St. Louis Rams and Denver Broncos are also in the running for Dixon, who is not expected to return to Pittsburgh.

The Ravens have been inconsistent in how they've addressed the backup quarterback position recently. In 2010, Baltimore spent $3.8 million on Marc Bulger to have veteran insurance behind Joe Flacco. In 2011, the Ravens went with rookie sixth-round pick Tyrod Taylor.

One reason why the Ravens could go with Bulger in 2010 was the uncapped year, but it's definitely a major philosophical switch to go from a playoff-tested quarterback in Bulger to a raw prospect like Taylor. Of course, Baltimore hasn't needed a backup, because Flacco has never missed a start in his four-year career (64 straight, the third-longest current streak in the NFL). But the Ravens' playoff chances would get decimated if Flacco got hurt, and the team had to turn to Taylor for an extended period.

Dixon, 27, the No. 3 quarterback last season for Pittsburgh, has made three career starts in his four seasons with the Steelers. He has a 2-1 record, with one touchdown and two interceptions. Dixon's first start came against the Ravens in 2009, when his interception in overtime set up the winning field goal.

Here are the backup quarterback situations for the rest of the AFC North:

BENGALS: Cincinnati is set with journeyman Bruce Gradkowski. When Andy Dalton was hurt in last year's season opener, Gradkowski rallied the Bengals to a 27-17 win at Cleveland.

BROWNS: At this point, the Browns are going with Seneca Wallace, the team's backup for the past two seasons. But the depth chart could get moved around if Cleveland drafts a quarterback in the early rounds. If the Browns don't take a quarterback, Wallace won't be competing with Colt McCoy for the starting job, the team said.

STEELERS: Besides Ben Roethlisberger, the only quarterbacks on the roster are Troy Smith and Jerrod Johnson. The Steelers likely will bring back Byron Leftwich or Charlie Batch. The favorite to return is Leftwich, who reportedly drew interest from the Colts.