Marcus Trufant will make his season debut for the Seahawks on Sunday at Dallas.
Seattle activated the 2007 Pro Bowl cornerback from the physically-unable-to-perform list Friday. Last week was the first time Trufant had practiced since July, when a disk issue in his back began.
Trufant takes the roster place of Lofa Tatupu. The three-time Pro Bowl linebacker went on injured reserve following surgery this week to repair a torn left pectoral muscle.
Seattle will also get starting outside linebacker Leroy Hill back Sunday.
The game will also be a Dallas homecoming for Julius Jones, but the running back is trying a different approach.
Last year he had Seattle's date against his former team circled and highlighted beginning seven months before the Seahawks played at Dallas. Then Jones fumbled twice and was benched, part of Seattle's disastrous Thanksgiving Day loss.
This week, Jones seems like he's trying to sneak back to Dallas to play Sunday against the team that discarded him two years ago. He says it's just another game.
The Associated Press contributed to this story.