Blue-Line Injuries Threaten Opening-Night Depth

Mattias Samuelsson remains week-to-week with a lower-body injury, while Olen Zellweger remains in concussion protocol and could miss Buffalo's October 1 opener. Rasmus Power, Louis Crevier, Ryan Johnson, Zach Metsa, Dennis Gilbert and other depth options may be forced into larger roles; Radim Mrtka should not be rushed.