The team announced Tuesday that it has signed Doug Legursky, its starting center during the Super Bowl XLV loss to the Green Bay Packers in February 2011. Receiver David Nelson was placed on injured reserve in the corresponding move.
Pouncey had surgery to repair a broken bone in his ankle/lower leg area after Packers safety Ha Ha Clinton-Dix fell on him Sunday in a preseason game. The Steelers have not yet placed him on short-term IR -- which would enable him to return for the second half of the season -- but could do so soon.
Legursky has started 30 NFL games in his career, including 17 for Pittsburgh from 2009 to '12. He played two games with the San Diego Chargers last year.
The Steelers also have reserve center Cody Wallace on the roster. He started a handful of games for Pouncey in 2013.