The Bruins have surprised most observers this year by scoring far more than expected. They went into Sunday’s game in Philadelphia ranked eighth in goalscoring in the NHL.

But that scoring has deserted them at an inopportune time.

For the third straight game, the B’s managed just one goal and dropped their third straight contest on this current four-game road trip.

This time, they secured a helpful point, thanks to Joonas Korpisalo’s 29-save performance, but they lost 2-1 to the Philadelphia Flyers in overtime on Sunday. After the game, coach Marco Sturm focused on the silver lining.

“I thought it was a huge point for us,” Sturm told reporters in Philly. “I know not everything was smooth but guys battled back. We wanted to get that power-play goal in the third and we did. Korpi made some greats. It was unfortunate in OT but we’ll definitely take that point.”

Rookie Porter Martone, who was taken one pick ahead of B’s prospect James Hagens in last June’s draft, scored his first NHL goal at 2:31 of overtime to lift the surging Flyers.

The B’s tied the game early in the third period but then played a Keystone Cop-style overtime. After Mark Kastelic won the opening faceoff, first David Pastrnak turned over the puck and then Pavel Zacha coughed it up. Korpisalo saved his teammates there, but he had little chance on the game-winner.

First, Pastrnak took a penalty after losing the puck high in the offensive zone. Then on the ensuing faceoff, Charlie McAvoy took a high-sticking penalty to give the Flyers a 5-on-3. At that point, it was only a matter of time and Martone took the honors, burying a shot from the low slot.

It wasn’t just that the B’s didn’t score much, they didn’t generate many chances, either. They only had 19 shots on net. It makes you wonder if B’s management is mulling any help from Providence, perhaps Hagens, especially after watching Martone beat them with a two-point game. One way or another, they need more offense.

“I think right now we’re looking for quality shots instead of quantity,” said Zacha, the B’s lone goal-scorer. “Sometimes when it’s not going our way, we have to switch our mindset to going to the net and shooting more pucks. We talk about it but we just don’t do it in the games yet. If we want to make the playoffs, we have to do that, have more shots, more tips.”

The three-game losing streak has not been too damaging, at least not yet. On Sunday, the Senators beat Carolina, whom the B’s play on Tuesday, to jump into the second wild-card spot, five points behind the first wild card B’s with a game in hand. The B’s are still six points above the cut line and the ninth-place Islanders, who were leapfrogged by the Flyers for third place in the Metropolitan Division. But the B’s need to get their game in order.

Sturm made some alterations going into the game. Korpisalo got the start on the second half of the back-to-back while Mason Lohrei, who had missed the previous four games with an upper-body injury, subbed back in for Jordan Harris. Sturm also put together the line of Morgan Geekie, Elias Lindholm and Pastrnak, a grouping that was good at the end of last season but has never gotten going when together this season. The move was partially done in mind as a way to help Geekie, who entered the game with a 15-game goal less streak, break out of his slump. The struggle continued, however, though the trio did have some chances.

“(Geekie) is a heck of a shooter and a goal-scorer and we need to get him going. I think we had some really good looks today as a line and unfortunately it didn’t go in,” Pastrnak said.

All four of the players involved in the changes were on the ice for the Flyers’ first goal, which came on their first shot of the game.

Hampus Lindholm made an ill-advised pinch down low, producing a 2-on-1 going the other way for Philly. Martone, who signed his pro entry level contract at the end of his Michigan State season, made a nifty touch pass to spring Christian Dvorak for a 2-on-1. Lohrei was the lone defender back and he took away the pass but Dvorak beat Korpisalo over the glove at 4:19.

The B’s loaded-up line did have some chances in the first period. Geekie had two point blank attempts that wouldn’t go and Pastrnak had a good chance in tight but Flyers goalie Daniel Vladar, who stole the last meeting between the two teams on Feb. 28, made a good poke check.

But offensively, the B’s were mostly one-and-done in the first. They had three shots on net, giving them a total of six in two periods dating back to the third period of Saturday’s loss in Tampa.

The B’s showed a little more life at the start of the second after they killed off a McAvoy penalty, earned with a straight right cross to the kisser of Sean Couturier at the end of the first.

Again it was the top line that created the pressure but Vladar turned away good chances from Geekie and Pastrnak, while Korpisalo stoned Carl Grundstrom on a breakaway after a Geekie neutral zone turnover. The struggling Geekie then took a tripping penalty but the B’s killed that one off, too.

Geekie took another, more inventive penalty when McAvoy broke his stick on a shot attempt and, as the Flyers headed out on a dangerous rush, Geekie threw his stick onto the ice for McAvoy. That’s a no-no. But the B’s killed that off, too.

“I meant to just pass it to him and then fumbled it. It was my fault completely. But I didn’t mean to throw it, I just tried to reach it over and hand it,” said Geekie, adding he was aware of the rule.

It looked like the B’s were going to get their first PP when Matvei Michkov fired the puck on net on a clear delayed offside. He was tagged with an unsportsmalike call, but Pastrnak was called for a roughing when he went over to address the transgression.

The B’s did earn their first PP with 35 seconds left in the second when Grundstrom interfered with McAvoy, thanks to McAvoy churning his legs along the boards.

On the advantage, the B’s tied it 35 seconds into the third. A Pastrnak one-timer broke through Vladar’s glove and trickled just wide. But Casey Mittelstadt was there and made a nifty two-foot backhand pass to Pavel Zacha, who had an easy goal for his 29th.

That’s the way it stayed into the extra session, thanks in large part to a handful of a Grade-A saves by Korpisalo down the stretch and brutal non-call on a clear Hampus Lindholm trip. But they finally ran out of lives in OT.