Ryan O’Reilly had two goals and an assist as the St. Louis Blues beat the Vancouver Canucks 3-1 in Game 4 on Monday night to even in their first-round playoff series 2-2.

Alex Pietrangelo also scored for the Blues and added an assist. Jake Allen made 22 saves.

J.T. Miller scored for the Canucks, and Jacob Markstrom stopped 34 shots.

Game 5 is Wednesday.

O’Reilly gave the Blues a 2-1 lead at 6:52 of the second as he took a pass out of the corner from David Perron, walked out in front of the net and flicked a backhander into the top corner for the second two-goal playoff game of his career.

The Blues then caught a break on a two-man advantage. Pietrangelo zipped the puck through traffic in the crease and the puck hit Edler’s stick and went in with 4:13 to go in the middle period.

O’Reilly, last year’s Conn Smythe Trophy winner as the MVP in the Blues’ Stanley Cup run, scored late in the first period on the power play – the first time the Blues have opened the scoring in the series.

Pietrangelo sent a slap shot that missed the net, but the puck caromed straight back off the backboards to O’Reilly standing beside the goal post. O’Reilly elevated the puck from a sharp angle under the crossbar with 3:37 left.

Vancouver tied it just 40 seconds into the second period. Alex Edler wristed the puck from the blue line. Miller redirected it and it bounced past Allen for his fourth goal of the postseason.

The Blues have now won two straight after dropping five in a row in return-to-play action.

O’Reilly has three goals in the series. Perron recorded two assists and has registered a point in every game this series (two goals, four assists).