Jonathan Marchessault buried the game-winner in overtime for the Vegas Golden Knights in a game that featured a handful of lead changes.
After dropping consecutive losses, the Knights were knocked on the canvas by the Blues just 25 seconds into the game as Zach Sanford wired a shot from the circle past Malcolm Subban.
Vegas hit back quickly, however, as Max Pacioretty ripped a shot beyond Jordan Binnington and the forward tallied his second goal of the game at 6:34 in the first after jamming the puck into the net after the Blues failed to clear the zone.