The Blackhawks did not manage their first shot on goal in the third until 10:13 of the period, by which time the Blues had seven. Then after Chicago had come up empty on a power play, the Blues came back with a goal at 12:05 when Tarasenko's pass to Jori Lehtera never met its intended target, instead going off Blackhawks defenseman Niklas Hjalmarsson's skate.
Less than 7:55 later, the Blackhawks were skating off, disappointed and frustrated.
And the Winter Classic loss continues an even more pressing concern: The Blackhawks are 1-4-1 in their past six games, five of which have been played without forward Marian Hossa, who is tied for the team lead with 16 goals. He left after the first period of Chicago's Dec. 20 loss to the Ottawa Senators and has not played since.
"We know we miss him," Keith said. "He's a huge part of our team, offensively and defensively. He's a powerful player for us, hangs onto pucks and he's hard to take the puck away from. He enhances our whole game, whether it's puck possession, guarding pucks and being smart with the puck. He's a good example for all of us."
Hossa skated on Jan. 1 in Chicago and is improving, though not enough to play in the Winter Classic. The hope is that he will not be out much longer.
The Blackhawks need the help. Their schedule gets a bit more manageable coming up, with four consecutive games at home, against the Buffalo Sabres, Carolina Hurricanes, Nashville Predators, and Detroit Red Wings, none of whom are holding a Stanley Cup Playoff spot.
"We've lost five of our last six here, so it's probably time to start turning it around," Kane said. "We've got four games in a row at home, so try to get back to where we were, get back to playing the way we were, trying to get some points in these games and hopefully play a little bit better, make 2017 a good year."