Brad Marchand has mild concussion

The Boston Bruins announced Thursday evening that left winger Brad Marchand suffered a mild concussion on the elbow hit to the head he took Wednesday night from New Jersey Devils defenseman Anton Volchenkov.

"As you know, it's a mild concussion," Bruins coach Claude Julien said Thursday night after Boston's 2-1 loss to the Islanders. "The one thing with these concussions, it's not necessarily a week, that's an old rule from before. Since, probably a year or two, it's been about going through the protocol and that's what we're going to go through with Brad, go through the protocol that's demanded and we'll take the time that's needed, but it could be more than a week, could be less than a week. It has nothing to do with days or weeks, more than it has to do with passing the protocol that the league has put together. For those who think that it's misinformation, it's certainly a new rule that's been put in place."

The Bruins did not say how long Marchand would be out. The announcement from general manager Peter Chiarelli said the team will "provide an update on his status when appropriate."

Marchand leads the team in points (33) and goals (16).

Volchenkov was given a four-game suspension for the second-period play, which forced Marchand to leave the game.

Information from ESPNBoston.com Bruins reporter James Murphy was used in this report.