Four takeaways: Blackhawks play spoiler against Blues again

Here are four takeaways from the Blackhawks' 4-3 shootout win over the St. Louis Blues at the United Center on Wednesday:

1. Spoiler again

The Blackhawks last season didn't have much to play for down the stretch. But they had two matchups against the Blues, who were in the thick of a playoff race, and they played spoiler.

The Blues missed out on the final wildcard spot in the Western Conference by one point, and you can look at the April 4 game vs. Chicago as the one that got away. Duncan Keith scored the game-winning goal with 8.5 seconds left in regulation to prevent the Blues from picking up at least a point and possibly a second.

The Blues tried doing their part to get revenge on the…