ST. LOUIS - Christian Ehrhoff scored the game-winning goal 2:24 into overtime, as the Vancouver Canucks scored four unanswered goals to edge the St. Louis Blues, 4-3, at Scottrade Center.

St. Louis forward Brad Boyes was given a double minor for high sticking 19 seconds into overtime. Kyle Wellwood fed a pass to Ehrhoff, whose slap shot from the right circle beat Chris Mason.

The win was the Canucks' fifth of a possible six points three games into a four-game road trip that wraps up Saturday in Dallas.

Daniel Sedin and Henrik Sedin each had a goal and an assist for the Canucks, who went just 1-for-9 on the power play. Mikael Samuelsson also lit the lamp for Vancouver, which have won four of its past five games.

Roberto Luongo turned aside 22-of-25 shots for the victors.

Andy McDonald had a goal and an assist for the Blues, who have dropped four in a row. Keith Tkachuk and Alexander Steen also tallied for St. Louis, which has lost four in a row and eight of its past nine on home ice.

Mason made 26 saves in defeat.

Down 3-1, the Canucks scored 5:46 into the third to make it a one-goal contest. Samuelsson fired a wrister from the bottom of the left circle that snuck under the glove of Mason.

Henrik Sedin lit the lamp with 1:56 left in regulation to tie the game at three. Henrik Sedin gathered the disc in front and was able to jam the puck between Mason's pad and the left post.

The Blues seemed to score just 1:44 into the first period. Patrik Berglund fired a shot on goal from along the left boards that hit off the post. David Perron, who was in front for the rebound, chipped the disc into the air and it floated above the goal line. The light went on to indicate a goal, but the replay showed the puck never crossed the goal line.

St. Louis went on the power play for five minutes at the 12:47 mark. Cam Janssen and Rick Rypien each got five minute majors for fighting. Rypien also got a 10-minute match penalty because he had tape on his hand, which cut Janssen during the fight.

Steen's power-play score gave the Blues an early edge with 3:05 left. Boyes dumped a pass back to the point for Steen, whose slapper got past Luongo.

St. Louis lit the lamp 4:07 into the second to take a 2-0 lead.

Perron controlled the puck at the left circle before sliding a pass in front to Tkachuk, who finished the play off with a tip-in.

McDonald's 12th goal of the season gave the Blues a three-goal margin with 5:30 remaining. Vancouver cut the deficit back to two on Daniel Sedin's wrister with 3:51 to go.

GAME NOTES:
The Blues lead the season series with the Canucks, 2-1...The Blues went 1- for-5 on the power play...St. Louis is just 6-13-3 as the host this year.