Per the Washington Post.
Mark Brunell (emphasis added, and think about it):
[Quarterback] Mark Brunell will have surgery on his left shoulder... [Redskins Director of Sports Medicine Bubba] Tyer said Brunell injured his throwing shoulder in the Redskins' Nov. 5 win over Dallas, and... had been trying to play through the injury without having surgery.
[Linebacker] Marcus Washington [will have surgery] on his elbow and possibly his hip... Washington, who was placed on injured reserve Dec. 23 with a strained right knee, will be examined for multiple injuries. Tyer said, however, that Washington would not have surgery on the knee.
Defensive end Phillip Daniels underwent surgery on both ankles yesterday... Daniels had been playing on a bad ankle since the Redskins' 25-22 loss to Tennessee on Oct. 15 and, by compensating for one, injured the other. He managed to play in all 16 games.
[Tight End] Todd Yoder [will have surgery] on his knee.
Good news = Lemar Marshall will not require offseason surgery for an injured knee.