Tatupu practiced on Friday as the Seahawks held a light walkthrough before flying to Chicago. Coach Pete Carroll said because the practice didn't involve pads or helmets, Tatupu could participate.
Tatupu suffered a concussion in the fourth quarter of last Saturday's 41-36 upset of New Orleans on a hard collision with the Saints' Julius Jones. Tatupu still must be cleared through the league-mandated concussion testing to play against the Bears.
Carroll says the "signs are really good" he'll be able to play against Chicago.