The Seattle Seahawks signed former Cleveland Browns nose tackle Ahtyba Rubin and re-signed defensive tackle D'Anthony Smith. It's a one-year contract for Rubin. Rubin started 11 games last season for the Browns last season. His four-year, $26.5 million contract expired. Rubin is primarily a nose tackle. Smith played in two games for the Seahawks in 2013. He was on injured reserve last year with a biceps injury. Follow me on Twitter: @RavensInsider Aaron Wilson covers the Ravens for The Baltimore Sun