Walker (oblique) is listed as doubtful for Thursday's game against the 49ers, Curtis Crabtree of Fox 13 Seattle reports.
Walker was expected to miss some time due to the oblique strain that he suffered Sunday versus the Rams, and he's now one step closer to sitting out his first game of the season. His status will be confirmed when Seattle releases its inactive list approximately 90 minutes before Thursday's 8:20 p.m. ET kickoff. In Walker's expected absence against San Francisco, the Seahawks will likely turn their backfield over to rookie second-round pick Zach Charbonnet, with DeeJay Dallas and Kenny McIntosh in reserve. Walker's next chance for game action will come in another Thursday game Nov. 30 at Dallas.