from the Buffalo News,

Nobody knows for sure because expert opinions vary, but it’s possible Buffalo Sabres center Tim Connolly for months has been suffering from lingering neck problems and not necessarily post-concussion syndrome.
Sabres coach Lindy Ruff said Saturday that doctors diagnosed Connolly with having a disc that was aggravating a nerve in his neck, which could be the source of persistent headaches that have sidelined the center all season. Connolly recently received an injection in hopes of relieving the neck problem and the headaches.

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