The San Jose Sharks are hoping to add to those woes after an agonizing loss to Rask earlier this season.
The Sharks have won six straight at home and will try to hand the Bruins a fourth consecutive road loss Saturday night.
Rask is 1-3-0 with a 4.60 goals-against average in his last five starts, and he was pulled for the second time in that span after giving up three goals on 18 shots in Thursday's 4-2 defeat at Los Angeles. Prior to this slump, he was fifth in the league with a 1.81 GAA.
Boston (28-14-2) will try to avoid its first three-game losing streak of the season and first four-game road skid since March 11-22, 2012.
"We're just not getting it done right now," said Chad Johnson, who made 16 saves Thursday after replacing Rask. "We just need to regroup and take as many positives as we can from these games and realize what we need to do to have success and win games. I think it just comes down to intensity and that passion to want to win games. That's what we're lacking."
Coach Claude Julien has not given any indication of whether he will turn back to Rask in the finale of this three-game trip. Rask made 38 saves in a 2-1 home win over the Sharks (28-11-6) on Oct. 24 in his only career start against them.
That was San Jose's first regulation loss and it came in frustrating fashion when David Krejci tipped in a shot with 0.8 seconds left for the winning goal. The Sharks had been 4-0-1 in the previous five matchups.
The Bruins will be tasked with slowing down former longtime Boston center Joe Thornton, who has 14 assists for all of his points over his last 10 games. Thornton leads the league with 45 assists and had two in Thursday's 4-1 home win over Detroit.
Joe Pavelski scored twice in that contest to give him eight goals and four assists in his last 10 games. He has 10 points in a seven-game run at home.
"He's been really good," coach Todd McLellan said. "We need to keep him that way. When the team really needs him, he elevates his game. That's the sign of a real good player."
Boston could get a spark from the possible return of two veteran wingers.
Enforcer Shawn Thornton is eligible for his first action since Dec. 7, when he attacked Pittsburgh's Brooks Orpik and was later suspended for 15 games. Thornton went after Orpik in retaliation for a hit by the Penguins defenseman that knocked Loui Eriksson out of that contest with a concussion. Eriksson will likely return for the first time since that incident Saturday.
The Bruins' power play has come up empty in a season-high four straight games, going 0 for 10, and their penalty kill has yielded eight goals in their opponents' last 21 chances.
"We know we can play much better than we are right now," captain Zdeno Chara said. "That's what's frustrating. We need to get our game back. It's not going to happen overnight, and it's not going to happen by trying to make some high-risk plays. We've just got to stay patient and slowly gain our game back. We've just got to grind it out."