Adam Schefter is reporting that Russell Okung has a torn pectoral muscle and is now facing six months of rehab. There aren't many details out yet, and no official word from the team, but this is obviously very bad news for the 2nd year left tackle and for the team. They'll likely place him on the Injured Reserve this week.
As I wrote earlier, Okung was injured after the whistle on the 2nd to last play of the game, when Philadelphia Eagles' defensive end Trent Cole flipped him over his shoulder, in what appeared to be purely out of frustration.
With Okung presumably going to the injured reserve, this will be the third Seahawks' starting offensive lineman to do so in the past few weeks, following the knee injuries to RG John Moffitt and RT James Carpenter. The injury bug has struck the Seahawks hard this year, particularly on the offensive line, so it's looking like the rest of the season, they'll be relying on their depth to carry them the rest of the way.
On the Pete Carroll show this morning, The Seahawks head coach mentioned that Okung text messaged him late last night, saying that "If you I.R. me, I'll mess you up." It's looking like, if Schefter's report is accurate (and almost all of his reports are), that Carroll will have no choice.