Troy Brouwer scored a power play goal in the first period to propel the Blues' four-goal comeback in a 5-2 victory over the Blackhawks on Thursday at the Scottrade Center.
Kevin Shattenkirk added another goal on the man advantage before the end of the first, and Jori Lehtera and Kyle Brodziak added short-handed scores in each of the next two frames.
Lehtera had a goal and an assist in his preseason debut after having right ankle surgery Aug. 4.Dennis Rasmussen and Brandon Mashinter scored first-period goals for Chicago (3-2).