Update: Matt Cassel reportedly has a minor knee sprain. He should be back by next week.
Kansas City Chiefs QB Matt Cassel came up limping after being sacked in the first quarter of the Chiefs v. Seahawks game this evening. It appears to be an issue with his knee or leg. He walked to the locker room under his own power.
Cassel reportedly needed help walking down a flight of stairs.
He is questionable to return to the game.