they may sit him for a few weeks. I know it was just a sprain but he did leave the arena (or hospital, can't recall which the report stated) in a neck brace.

I'd be surprised if it was one game. A week or two is what I expect.

I have him in a keeper league and I'm about to hit the 2nd round of the playoffs so ideally I need him to play (I'm facing the best team in the league next round) but I don't expect to have him for most of the series.

You got some better intel?