BUFFALO, N.Y. — The New Jersey Devils didn’t bounce back from their opening-night crusher.

Rookie Victor Olofsson scored twice and the Buffalo Sabres kicked off the home-opening portion of their 50th anniversary season with a 7-2 romp over the Devils on Saturday night.

“I think we were all getting a little antsy, and wanted to make sure we were keeping the crowd in it,” Eichel said of a ceremony honoring the team’s past led to the start of the game being delayed by nearly 20 minutes after the Zambonis were forced to resurface the ice.

With former stars including Gilbert Perreault on hand, the Sabres had a sold-out house in a full-throated roar from the pregame ceremony, through a three-goal second period and once more when Sam Reinhart capped the rout with a breakaway goal with 3:44 remaining.

The Devils came out flat a night after a monumental season-opening collapse in which they blew a 4-0 second-period lead in a 5-4 shootout loss to the Winnipeg Jets.

Their two goals came from Kyle Palmieri, in the opening minute of the second period, and Travis Zajac, in the opening minute of the third.

New Jersey otherwise was unable to withstand the Sabres’ fast-paced attacking style in a game Buffalo converted its first three power-play opportunities. Mackenzie Blackwood stopped 29 of 36 shots, a night after allowing two goals on nine shots in relief of starter Cory Schneider.

“A little too much watching, I think, right now and waiting for someone else to maybe do the work,” Zajac said.

The Sabres, under new coach Ralph Krueger, built off the momentum of an efficient 3-1 season-opening win at Pittsburgh by getting off to their first 2-0 start since the 2012-13 lockout-shortened season.

Reinhart scored twice while captain Jack Eichel and Jeff Skinner had a goal and assist each. Former Islander Kyle Okposo and Sam Reinhart also scored. Carter Hutton stopped 18 shots.

The five-goal margin of victory was the largest in Buffalo’s home-opener and the seven goals scored was the most since a 9-5 win over Boston in 1974.

Olofsson opened the scoring 2:56 with a one-timer from the left circle, where he was set up by Eichel’s pass through the slot.

Olofsson then played a major role in Eichel’s goal scored with 2:34 left in the opening period. Off a faceoff to the right of the Devils net, Olofsson got his body on Devils defenseman Damon Severson, forcing his pass attempt to dribble to the side of the net.

Before Blackwood could get his glove down on the puck, Buffalo’s Jeff Skinner poked it loose and into the crease, where Eichel swept it into the open side.

The Sabres looked nothing like the team that wilted at the first sign of adversity in its previous two seasons under coach Phil Housley.

Okposo regained Buffalo’s two-goal edge by tipping in Rasmus Dahlin’s shot from the right point 2:12 after Palmieri cut the lead to 2-1.

Reinhart had his shot from the right circle bank in off the crossbar 2:58 after Zajac scored to cut the lead to 5-2.