That really was an inexcusable coaching decision to leave him in there on one leg. The thing that makes him effective is his running ability. It was clear to any casual observer that the Redskins had no chance to win that game with RGIII in there. May not have won with Cousins either but to risk serious injury to RGIII was just insane.
Probably going to need surgery and a lot of rehab in the offseason.
Hope he comes back. Carson Palmer never was the same after his injury.