Updated

The Seattle Seahawks have signed veteran kicker Ryan Longwell and defensive end Patrick Chukwurah after placing Steven Hauschka and Chris Clemons on injured reserve.

The moves by the Seahawks became official Wednesday morning. Neither Longwell nor Chukwurah have played in the NFL this season. Longwell last kicked for Minnesota during the 2011 season, when he made 22 of 28 attempts.

Chukwurah has not played in an NFL game since 2007 with Tampa Bay. He spent the 2009 and 2010 seasons in the UFL with the Florida Tuskers, where he led the league in sacks.

Clemons suffered a torn ACL and meniscus in his left knee in Sunday's win over Washington, while Hauschka suffered a calf strain. Coach Pete Carroll said Monday that Hauschka was feeling better but his availability for the rest of the playoffs was unclear.