No prognosis mentioned. I would expect some sort of update later tonight. (However, Kyle McCarthy of MLSsoccer.com just Tweeted that New England's Darrius Barnes just missed two months with an injury originally diagnosed as a "right midfoot sprain.")
Keller was injured in a challenge outside the box in the 65th minute of tonight's 1-0 win at D.C. United. (See post below.) He remained in the game, but limped noticeably, and neither punted nor kicked the rest of the way.