"When Ottawa Senators coach Paul MacLean said the team will be following the NHL's "concussion protocol" when it comes to Daniel Alfredsson, who won't travel to Boston for Tuesday's game, he was in effect saying that Alfredsson has a concussion.

That had previously been suspected but not confirmed.

Alfredsson will now be out until it is determined that he is no longer suffering concussion-like symptoms.

This is the way it works according to the NHL's concussion protocol:

When a player comes off the ice and is suspected of having a concussion, as Alfredsson was after being hit by New York's Wojtek Wolski on Saturday, an initial examination is done at the bench."