It was the first game back from the Olympic break and the Boston Bruins had a chance to gain two points for the first time when trailing by two goals in any given game this season.

Well, things will have to wait another day. The Bruins scored three unanswered goals to hold a 4-3 lead with under a minute left in regulation before Buffalo Sabres’ Matt Moulson scored his 16th goal of the season to tie the game and send it to overtime.

Before B’s fans could even get a late night snack, Matt D’Agostini intercepted an errant Loui Eriksson pass. He then beat Zdeno Chara to the puck by shielding the biscuit with his body proceeding to beat Chad Johnson and stun the Black and Gold.

If it wasn’t evident to Peter Chiarelli that the Bruins need another defenseman I don’t know what is. The offense looked fluent for the most part on Wednesday night, but the rust was on the defensive side of the puck.

“Yeah, I thought offensively, I didn’t mind our game,” Bruins Head Coach Claude Julien said after the tough 5-4 loss. “I thought we moved the puck well and we had some good offensive zone time and we did score four goals. We should win those kinds of games, but certainly we were definitely rusty defensively.”

Julien admitted that at some points during the game the B’s made some very uncharacteristic mistakes.

“The goals that we gave them are certainly not the way we normally give up goals-some loose gaps, two goals just around the slot area when we should have had a guy closer to him-and we needed some timely saves,” Julien said. “We just didn’t get that tonight.”

It was a game the Bruins should’ve won even though they trailed 3-1 during the second period. All was not lost as the B’s escaped with a lonely point.

Torey Krug knows it was one that slipped away an even though they earned a point it just wasn’t enough for the guys in the locker room.

“You know, we hold ourselves to a pretty high standard,” said the rookie defenseman. “So when you have an opportunity to get two points with a lead in the third period, we’re going to be disappointed when we don’t come out with two points. We just hold ourselves to that.”

It looked as if the long break hurt Johnson as his hot streak did not carry over. The Bruins backup gave up five goals on 26 shots in a losing effort. Though Johnson shouldn’t totally be blamed for the tough loss, Wednesday’s performance was not his strongest.

On the other side of the ice, Jhonas Enroth earned his second victory of the season (yes, second). He now owns a 2-12-5 record on the season.

On a brighter note, the third line of Chris Kelly, Carl Soderberg and Loui Eriksson looked like one of the best units on the ice Wednesday night. Kelly scored his fifth goal of the season while Soderberg collected his 22nd assist on a nifty no look pass from behind the net.

Chara scored in his first game back on the power-play to edge his total to 14 goals on the season while Brad Marchand added another 20-goal season to his resume.

The Bruins will look to get back on track Saturday afternoon as they host the Washington Capitals at TD Garden.