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The Seahawks have signed quarterback Jerrod Johnson, the club’s website reported Wednesday.

Johnson, 24, was with Pittsburgh last preseason. The Steelers released him on August 31. The former Texas A&M passer also had a stint with the Eagles in 2011.

Johnson (6-5, 251) played with the Sacramento Mountain Lions of the United Football League in 2012, completing 25-of-59 passes for 321 yards with three TDs and one interception in three games, according to statistics on the club’s website.

Johnson’s addition gives the Seahawks four quarterbacks on the roster. Brady Quinn looks likely to back up starter Russell Wilson, with Johnson and Josh Portis options beyond Quinn.