The Blues fell behind the visiting Chicago Blackhawks by two goals on three occasions Saturday night at Scottrade Center. Twice, they gave the first sellout crowd of the season a reason to believe they could complete the comeback.

But when backup goalie Brian Elliott, who came on in relief and helped power the club’s second-period comeback, allowed Chicago to open a two-goal cushion for the third time early in the third period, the chances of another rally seemed remote.

As fans watching at home were perhaps ready to grab their remotes, however, the Blues picked up goals from Vladimir Tarasenko and Patrik Berglund in the final four minutes of regulation to help send the game to overtime.

Then in the shootout, Kevin Shattenkirk ripped a shot past Chicago goalie Antti Raanta in the fifth round, and when Elliott followed with a save on Brandon Saad, the Blues clinched a 6-5 victory over the Blackhawks in front of a raucous crowd of 20,082.

It was the second shootout game-winner over Chicago in two years for Shattenkirk, who also finished off the Blackhawks last April.