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.

Alex Pietrangelo also scored and had an assist and David Perron had two assists for the defending Stanley Cup champion Blues. Jake Allen made 22 saves.

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

The teams were playing on a quick 24-hour turnaround after the Blues beat the Canucks 3-2 late Sunday night in overtime.

They outshot the Canucks 37-23, scored two goals with the man advantage to turn around what had been an abysmal 2-for-11 power play going into Game 4.

Most importantly, the Blues shut down a Canucks power play that had torched them for six goals in the first three games, but went 0 for 7 on this night.

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 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.

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).

St. Louis won without winger Vladimir Tarasenko, who missed his second straight game. The NHL has not divulged the reason.

Vancouver defenseman Tyler Myers was also scratched for a second time. He fell awkwardly head-first into the boards late in Game 2.

Game 5 is Wednesday.