BUFFALO -- Conor Sheary scored his second goal of the game at 4:11 of overtime to give the Buffalo Sabres a 4-3 win against the Pittsburgh Penguins at KeyBank Center on Friday.
"We know at this point of the year we've got to press for every point we can get, so those two points were really important," said Sheary, who had an assist. "I get the opportunity to be in some really good positions being out there in overtime. I was able to take advantage tonight."
Brandon Montour forced overtime with a shot from the blue line that was deflected past Penguins goalie Matt Murray, who was screened, to tie it 3-3 with 2:32 remaining in the third period. It was the second point of the game for the defenseman, who was acquired from the Anaheim Ducks on Sunday. He got his first point with the Sabres when he assisted on Sheary's first goal.
[WATCH: All Penguins vs. Sabres highlights]
Jack Eichel scored, and Linus Ullmark made 41 saves for Buffalo (30-26-8), which won for the first time in three games and is seven points behind the Columbus Blue Jackets for the second wild card into the Stanley Cup Playoffs from the Eastern Conference.
Nick Bjugstad, Patric Hornqvist and Sidney Crosby scored, and Justin Schultz had two assists for Pittsburgh (33-22-9), which has lost three of its past four games and is tied in points with Columbus. Murray made 26 saves.
"It's frustrating that we let a point get away because it was there to be had," Penguins coach Mike Sullivan said. "I thought for most of the night we were the better team. We carried the play for most of the night, we had some opportunities in overtime to score and we don't finish."
Video: PIT@BUF: Eichel capitalizes on turnover down low
Crosby's goal tied him with Jaromir Jagr for second in Penguins history with 439. Mario Lemieux is first with 690.
The Penguins are 5-7 in games decided in overtime this season.
Eichel extended his point streak to seven games when he shot from the left face-off dot and beat Murray to the short side to make it 1-0 at 3:09 of the first period. He has nine points (five goals, four assists) in the streak.
Bjugstad tied it 1-1 56 seconds later from the left circle at 4:05.
Sheary gave the Sabres a 2-1 lead on the power play at 12:53 after Kyle Okposo received a pass from Montour at the goal line and sent the puck to Sheary in the slot.
Pittsburgh outshot Buffalo 20-7 in the first period.
"We probably had more scoring chances, but it's hockey," Penguins center Evgeni Malkin said. "Sometimes that happens. They scored in the final three minutes, we need to help block shots, help the goalie. It's hockey, sometimes it's a little bit of luck."
The Penguins took advantage of a four-minute double minor to take their first lead of the night, scoring twice in 57 seconds. Hornqvist, screening Ullmark, deflected Schultz's point shot at 17:18 to tie it 2-2 at 17:18, and Crosby scored on a one-timer from the right circle for a second power-play goal at 18:21.
"Whenever you put a team like that on the power play for as much as we did in the second, for one, I think it ruins the flow of the game," said Eichel, the Buffalo captain. "And two, you're giving their best players a lot of touches and they're getting into the game and starting to feel themselves. So it's never easy. I know if you're on that opposite side and you're getting all those power plays, your game starts coming because you're feeling the puck a lot. I thought we did a good job coming out in the third and finding a way."
Video: EA Sports Overtime Winner: Sheary wins it for Sabres
They said it
"We had some great chances in overtime, they go the other way, we hit a post. That's the way it goes sometimes. We probably haven't buried the ones we've gotten and then it's gone back the other way and ended up in our net." -- Penguins captain Sidney Crosby on Pittsburgh's lack of success in overtime
"I just think it shows them that they can still come back again if they stay the course and stick with it. These guys fought right through to the end. … Our determination was really solid in the third and overtime that we can [find] a way to win. It just reminds them that they can still do it." -- Sabres coach Phil Housley on Buffalo coming back to win after trailing entering the third period
"That was a good one for me to get. Just overall, I think I needed to start scoring more, but it was a little bit more special against my old squad." -- Sabres forward Conor Sheary, who was traded from the Penguins on June 27, on his game-winner
Need to know
Eichel has 70 points and is the first Sabres player with at least that many in a season since Jason Pominville (73) in 2011-12. … Malkin got his 605th NHL assist, passing Pavel Datsyuk for third among Russia-born players. Sergei Fedorov had 696, and Sergei Zubov 619. … The Sabres won for the seventh time when trailing after two periods, tying the Montreal Canadiens and Calgary Flames for most in the NHL.
Penguins: At the Montreal Canadiens on Saturday (7 p.m. ET; SN360, SNE, SNO, SNP, TVAS, ATTSN-PT, NHL.TV)
Sabres: At the Toronto Maple Leafs on Saturday (7 p.m. ET; NHLN, CBC, SN1, MSG-B, NHL.TV)
Video: Sheary helps Sabres take down Penguins in OT