Hangartner has missed the last two games after injuring his knee in a Week 13 loss to the Minnesota Vikings. He returned to practice for the first time this week, working out on a limited basis over the past two days. (Buffalo had full practice participation from all 53 players on the active roster for both of those days - a rarity for an NFL club.) That practice time has opened up the possibility that Hangartner could return to the lineup this weekend.
Should Hangartner not play - Chan Gailey has said that the team won't rush him back into the lineup given their overall circumstances - Eric Wood would make his third straight start in the pivot.
Demetrius Bell and Chris Kelsay, who both got rest days on Wednesday, are also listed on the injury report as probable. Both will play and start on Sunday.
For anyone with a lingering doubt about Tom Brady's availability this weekend: he's ready to go. Brady missed practice Wednesday with flu-like symptoms, and was limited Thursday for the same reason. He'll be full-go on Sunday.