Bruce Gradkowski joins Steelers

The Pittsburgh Steelers made a move to stabilize the quarterback position behind Ben Roethlisberger, agreeing to a three-year deal with Bruce Gradkowski.

Gradkowski's agent, Rick Smith, confirmed the deal through his twitter account Wednesday.

The 30-year-old Gradkowski, a Pittsburgh native, played the past two seasons for the Cincinnati Bengals. He has thrown for 4,057 yards with 21 touchdowns and 24 interceptions in 36 career games.

Steelers quarterbacks Charlie Batch and Byron Leftwich are both free agents and are not expected to return.

The Steelers were 6-3 last season when Roethlisberger was sidelined by shoulder and rib injuries. Pittsburgh went 1-2 in his absence and continued to stumble upon his return, finishing a disappointing 8-8.

The Steelers also released guard Willie Colon. Pittsburgh earlier this week agreed to a three-year contract to re-sign guard Ramon Foster, who might get a chance to compete for Colon's vacated starting spot at left guard in 2013.

ESPN NFL Insider Adam Schefter and ESPN.com senior writer John Clayton contributed to this report.