As zkmavz pointed out in a comments section, Marlin Jackson is out for the season with torn knee ligaments.
http://twitter.com/Adam_Schefter/status/5461973147
Crappity crap crap crap. Next man up and all that. I'm about ready for our depth to stop being tested. I know Marlin hadn't done a lot this year, but this hurts. It seems like the entire defense is banged up or out for the season. Can we have another bye, please?