PITTSBURGH -- Mark Recchi scored the third of the Bruins' four goals in the final 3 1/2 minutes to cap their second frantic rally in two visits to Pittsburgh, and Boston beat the Sidney Crosby-less Penguins 4-2 on Monday night.
The comeback win, the second victory by Boston in six games, came after the Bruins squandered a 2-0 lead with 2 1/2 minutes left Saturday and lost 3-2 in overtime to Montreal.
Gregory Campbell added an empty-netter and set up two goals during a rally similar to one when Boston trailed 4-2 in Pittsburgh on Nov. 10 before scoring five goals in the third to win 7-4.
Pittsburgh is 0-2-1 without Crosby, who is out with a concussion. The timing of his return is uncertain.
Crosby, the NHL's leading scorer, is out following hits to the head by Washington's David Steckel and Tampa Bay's Victor Hedman in consecutive games.
Zdeno Chara scored a power-play goal on slap shot from the right point to start the rally at 16:37, and Brad Marchand scored 12 seconds later to tie it.
After Jordan Staal drew a holding penalty, Recchi gave the Bruins a 3-2 lead with his 200th power-play goal, putting in a rebound of Dennis Seidenberg's short wrist shot from in front.
Mike Rupp and Kris Letang had put Pittsburgh ahead 2-0 with goals in the second period, and Marc-Andre Fleury was working on his second shutout of the season until the game turned dramatically. Boston scored only one fewer goal during its late surge than it did in its previous three games combined.
Bruins center Marc Savard played in Pittsburgh for the first time since sustaining a concussion during a devastating blindside hit by Matt Cooke on March 7. Cooke wasn't penalized, fined or suspended despite causing an injury that forced Savard to sit out 43 games. The hit led the NHL to adopt its stricter stance against dangerous hits to the head.
Cooke's hit is featured in a video that the NHL distributed to its players and coaches before the season began to explain the tougher policy on blindside hits.
Savard, a team-worst minus-8 this season, took Boston's first penalty - for slashing Evgeni Malkin in the first period. In the second, Savard absorbed a hard hit from Brooks Orpik moments after making a pass from behind the net. Savard thought it should have been a penalty, and took a retaliatory roughing penalty following a multiple-player scrum.
With Recchi off for tripping, Letang made it 2-0 at 15:12 with a slap shot through traffic from the left point.
NOTES: Pittsburgh has lost five of six. ... The Penguins are 5-6-2 since winning 12 in a row. ... Malkin, who had an assist, has 25 goals and 25 assists in 41 games without Crosby.