Girgensons (undisclosed) is now listed as week-to-week.
Girgensons has missed 11 of the last 15 games with multiple injuries, though it's unclear if they're related to one another. Nonetheless, the 28-year-old will miss at least one more game (Thursday vs. Columbus) and set his sights on returning next week, when the Sabres play five times in eight days.