The Seahawks made a roster move Tuesday, placing defensive tackle Garrison Smith on injured reserve and re-signing defensive tackle Sealver Siliga.
Siliga, who signed with Seattle in the offseason, was placed on injured reserve with a calf injury on August 29, then released from injured reserve with an injury settlement later that week. Siliga, who went undrafted out of Utah in 2011, spent the past three seasons with the New England Patriots, appearing in 25 games, starting 13. The 6-foot-2, 345-pound Siliga also spent time on Seattle's practice squad in 2013 and with Denver and San Francisco the previous two seasons.
Smith, who Seattle claimed off of waivers from San Francisco before the start of the season, appeared in three games and made five tackles.
Additionally, tight end Luke Willson had successful arthroscopic right knee surgery to repair an injury sustained in Sunday's win over the Atlanta Falcons. The surgery was performed by Head Team Physician Dr. Ed Khalfayan at the Seattle Surgery Center.