from Pierre LeBrun of ESPN,

What a brutal day for GM Steve Yzerman, impacted on two fronts: most importantly on his NHL team but also on the Canadian Olympic team he is assembling. In fact, Yzerman was slated to assemble the Team Canada management staff Tuesday night in Toronto to update their player list for the Olympic team.

You don’t replace Stamkos, not on the Lightning (where Stamkos participated in 44 percent of his team’s goals scored this season), but not even on Team Canada.

Short of losing Sidney Crosby, not sure there’s a more damaging piece of news for Team Canada.

It is compounded by the fact Rick Nash -- another preseason lock to make the Olympic team -- has not returned to play since his early season concussion, although he’s skated of late so perhaps there will be good news soon.

Still, a sobering day on so many fronts, but most of all it’s the fans around the league who lose out the most, deprived of the game’s top goal scorer.

a bit more

added 5:20pm, from Erik Erlendsson of the Tampa Tribune,

Stamkos will remain at Massachusetts General Hospital overnight, Tampa Bay general manager Steve Yzerman said.

“It’s a big loss, but you know, we’ve been winning as a team and we’re going to have to find a way to continue doing that,’’ Lightning captain Marty St. Louis said. “We’re going to have to raise our game collectively. You don’t replace Stammer, but the guys are going to have to step up.’’

more

Added 7:16 p.m.

Team Canada said they'll still name #Lightning Stamkos to 25 man list. Don't think they would if they thought he had zero chance of playing

— Nick Kypreos (@RealKyper) November 12, 2013