Senators 3, Blues 2

OTTAWA - Peter Regin is enjoying his recent offensive outburst fully because it coincides with the Ottawa Senators' longest winning streak of the season.

Regin picked up his third power-play point of the game with an assist on Chris Phillips' goal midway through the third and the Senators extended their streak to five wins in a row with a 3-2 victory over the St. Louis Blues on Thursday night.

Regin, who opened the scoring in the first, got his second assist of the game as Phillips put a wrist shot from the slot past Chris Mason 10:29 into the third for Ottawa's third power-play goal of the game.

"Oh, it's nice," Regin said. "Everybody wants to score, obviously, especially when you help the team win. It's way more fun when you're winning five games in a row rather than losing five in a row."

Brian Elliott stopped 27 shots to win his third straight start and Milan Michalek also scored on the power play in his return after missing seven games because of a concussion.

The Senators had lost five in a row prior to their winning streak.

"We were on the other end of a bad streak there, so it's nice to turn it around, but to turn it around with consistency," Phillips said. "We have the right consistency right now and we just want to keep that going."

Brad Boyes scored 30 seconds into the third to draw St. Louis even at 2-2 after Eric Brewer scored the Blues' first goal late in the second.

Mason made 27 saves for St. Louis, which had won five of six.

Patrik Berglund, who did not dress for Wednesday night's 4-3 overtime win in Montreal, was back in the Blues' lineup as David Backes was sidelined by an upper-body injury.

St. Louis is 5-4-1 under coach Davis Payne, who took over behind the bench after Andy Murray was fired on Jan. 2.

Ottawa built a 2-0 lead midway through the second with a pair of power-play goals.

Regin, who has five points in his last two games, scored his second goal in as many games 16:09 in and assisted on Michalek's 17th goal 10:59 into the second.

Alex Kovalev, who played his 1,200th regular-season game, set up both power-play tallies.

Regin, who had a goal and an assist in Tuesday night's 4-1 win over Chicago, got credit for his eighth goal late in the first when Kovalev's centring pass went in off the Danish centre's right skate.

David Perron scored an apparent tying goal for the Blues as time expired in the first. Referee Brad Watson pointed to the net to signal a goal although the green light signaling the end of the period prevented the goal judge from lighting the red light behind the net. A video review showed that time had expired before the puck crossed the goal line.

Michalek scored nine seconds after Jay McClement was sent off for high sticking.

Brewer redirected Perron's shot from the right side into the net from the edge of the crease at 18:53 to draw St. Louis to 2-1.

NOTES: Blues RW Cam Janssen and Ottawa's Matt Carkner engaged in a lengthy fight 6:06 in ... Kovalev, who has also played for the New York Rangers, Pittsburgh and Montreal, has 406 goals and 570 assists for 976 career points ... The Senators next see action Saturday in Boston against the Bruins (1 p.m., Rogers Sportsnet, Team 1200).