McAvoy Injury Mania is in full swing, with everyone anxious to see what's up with the left knee of Charlie McAvoy.

So, what do we know? Not much.

New: Bruins defenseman Charlie McAvoy was present at TD Garden today with a brace on his left knee. https://t.co/Ykypbac2q0 — Boston Globe Sports (@BGlobeSports) March 5, 2018

A brace. Huh.

Also:

Charlie McAvoy onto ice for team picture in slippers, no socks, instead of skates. Other players in skates #NHLBruins — Matt Kalman (@MattKalman) March 5, 2018

So there you have it. McAvoy didn't practice, but also didn't have crutches or a cast or anything.

Given that the team let him walk on ice, there may be reason for optimism. After all, if he had a serious knee injury, walking on ice without assistance wouldn't be a great idea.

We'll update when we know more.

UPDATE (1:21 PM): Per the Bruins' Twitter account, he's still being evaluated and will not play tomorrow.