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(Sports Network) - The St. Louis Blues will try to expand their lead in thebest-of-seven Western Conference quarterfinals when they host the Los AngelesKings in Game 2 at Scottrade Center.

The fourth-seeded Blues jumped out to a 1-0 lead with an overtime win inTuesday's opener in St. Louis. Alexander Steen scored twice, including thegame-winner with 6:34 left in OT to lift the Blues to a 2-1 victory over thedefending champion Kings.

The Game 1 victory already gives St. Louis more wins than it had in the entireseries against Los Angeles last season. The Kings, who went 16-4 in the 2012postseason en route to the franchise's first Stanley Cup, swept the Blues infour games of the Western Conference semifinals.

Steen scored a power-play goal in the first, and then added a short-handedtally in the extra session after Los Angeles goaltender Jonathan Quickmisplayed the puck behind his own net.

Quick was pressured by Steen behind his own net and tried to play the disc offthe end boards, but it bounced to the low right side, where Steen recovered itbefore stuffing the puck into the empty net to help the Blues draw first bloodin this best-of-seven series.

"I just got on. I figured once the puck went down, I had fresh legs," Steensaid. "I figured I'd try [Quick]. I guess I just got fortunate behind the netthere. It hit my stick, and it went in."

Brian Elliott stopped 28-of-29 shots for the Blues, who will try to take a2-0 lead tonight before the series shifts to Los Angeles for Games 3 and 4, onSaturday and Monday, respectively.

The reigning Conn Smythe winner Quick posted 40 saves and Justin Williamsscored LA's lone goal with 31.6 ticks left in regulation to force overtime.

"It's exactly what it looked like," Quick said of Steen's goal. "I tried tomake a pass. [Steen] blocked it and scored."

The Kings had won their last four overtime playoff games before sufferingTuesday's loss. L.A. also never trailed a series at any point during lastyear's postseason.

Steen's power-play marker just over nine minutes into the game stood as thedifference for much of the contest, with Elliott turning away all comers overthe first two-plus periods.

The Kings finally solved Elliott in the final minute after Quick, who made 12saves in the third, headed to the bench for the extra attacker. Williams thentook a feed from Drew Doughty and made his way into the right circle beforerifling a wrister that beat Elliott high to the short side to even the score.

LA carried the momentum from Williams' goal into overtime and had a greatopportunity to put the game away after St. Louis defenseman Kevin Shattenkirkcaught Dustin Penner with a high stick that drew blood, resulting in a double-minor at the 12:45 mark of the extra session.

But it was the Blues who broke through, as Steen's unexpected short-handedscore 41 seconds later sent St. Louis to victory.

The Blues improved to 9-4 all-time against the Kings in the playoffs.

The Kings enter this postseason as the fifth seed in the West after winning itall as a No. 8 seed last spring. This spring, L.A. is trying to become thefirst NHL team to win consecutive championships since Detroit pulled off thefeat in 1997 and '98.

The Blues were 15-8-1 as the host during the regular season, while L.A. had apoor 8-12-4 mark on the road.

The next two battles in this series will be played in Los Angeles, with Game 3scheduled for Saturday at the Staples Center.

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