As Marian Hossa lay prone on the ice early in the third period on Tuesday night, the bad memories came back for the Chicago Blackhawks -- and probably for Hossa, too. On this night, he got up and walked to the locker room under his own power. But much like 10 months ago, the concern of a possible concussion, and its repercussions, looms again. Hossa scored his seventh and eighth goals of the season, and left the game after taking a Jannik Hansen forearm to the back of his head, in the Chicago Blackhawks’ 4-3 shootout victory over the Vancouver Canucks on Tuesday. Andrew Shaw, an impromptu third-shooter selection, notched the winner as the Blackhawks tied the 2006-07 Anaheim Ducks’ start of 16 straight games with at least a point (13-0-3). But the main concern was for Hossa, who missed the remainder of the 2011-12 playoffs after suffering a concussion from Phoenix forward Raffi Torres. Coach Joel Quenneville said Hossa “seemed OK” when he saw the right wing after the game, but that the team would know more on Wednesday. Obviously, given Hossa’s recent history – he was just cleared from the Torres-inflicted concussion in November -- the Blackhawks want to be careful. “There’s a major concern, so hopefully he’s OK,” said Quenneville. When asked about the Hansen hit, he said, “I think everybody saw it, everybody can have their own opinion. I’ll let the people who do that stuff do their job.”