After practicing on thursday Trent Williams' knee has responded well enough that the tackle is expecting to play on Sunday against the Colts according to this tweet from John Keim.
Trent Williams said he expects to play Sunday; said he goes to bed thinking about D. Freeney. Calls facing him "nerve-racking." #redskins
John Keim
john_keim
The last part of that tweet is what makes Trent Williams' presence on the offensive line so important for this game. Dwight Freeney is the type of guy that can give Trent nightmares; but he could absolutely destroy a lesser tackle put in the lineup to replace him. Freeney is their most untactful defensive player and the Skins will benefit from having their best option to combat him available on Sunday.