From the Post, among other sources (
Redskins Insider - Clinton Portis headed to injured reserve)
There will be time to analyze Portis' legacy as a Redskin since he probably won't return in '11 but as for the rest of the season that puts a heavy load on Williams and Torrain plus we just promoted Davis and signed Andre Brown ('09 Giants draft pick) from the Broncos practice squad.
This is going to hurt us most in pass protection/blitz pickup since he was one of the best in the game at doing so. I expect us to do more quick, short passes and screens so McNabb isn't back there as a sitting duck on a 7 step drop.