Chancellor reported to the team Wednesday after missing all of training camp, four preseason games and two regular-season games while seeking a new contract.
Coach Pete Carroll said they will make the final decision on Saturday, but the Seahawks are planning on activating Chancellor for the game.
The Seahawks were given a two-week roster exemption for Chancellor, which allowed him to practice while not counting against roster limits. The team will need to make a move to clear a spot on their 53-man roster for Chancellor in order for him to play Sunday.
Running back Marshawn Lynch is listed as questionable and will be a game-time decision due to calf injury. He did not practice Wednesday or Friday.
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