I haven't yet seen an official injury report from the Seahawks front office yet but we can surmise some of the injury scratches for this week by looking at who missed practice this week. Also, using the logic test that assumes the Hawks won't be rushing any players back from injuries in the preseason, I can give you a look at players likely out for tonights game against the Vikings.
Russell Okung and Ben Obomanu are both out, per Tom Pelissero and John Boyle. CB Kelly Jennings, CB Walter Thurmond, CB Roy Lewis, DE Chris Clemons, DE Pierre Allen, DT Colin Cole, DT Ryan Sims, TE Cameron Morrah, TE John Carlson and WR Deon Butler all missed practice time this week and should be considered unlikely to play.
On the other hand, DE Red Bryant and WR Kris Durham are both expected to play. WR Mike Williams and WR Sidney Rice are also both expected to start. It looks like RB Justin Forsett, who also missed the Seahawks first preseason game, should get a chance to get some carries.