For that to happen, it would help if Toronto did not fall behind early. In each of the three losses, Andersen allowed the first goal of the game within the first six minutes. Brad Marchand scored at 5:28 in the Bruins' 5-1 victory in Game 1; David Pastrnak scored at 5:26 in Boston's 7-3 win in Game 2; and Krug scored 28 seconds into Game 4.
Andersen said he was screened on the Krug goal but made no excuses.
"I saw I saw it initially, but on the way in I lost it," Andersen said. "It's one I've got to see."
The Maple Leafs also trailed the Bruins 3-1 in the 2013 first round. They won Games 5 and 6 2-1 before losing Game 7 5-4 in overtime, blowing a 4-1 third-period lead.
Forward James van Riemsdyk said he took consolation in the fact that Toronto came so close to completing the comeback five years ago. He said the Maple Leafs must play much better to do it this time.
"We're certainly we're not the first team in this position," van Riemsdyk said. "You have to take one day at a time, one game at a time, one shift at a time.
"Obviously we're going to have to be ready to go for the game on Saturday. Obviously we know what's at stake so I'm sure it won't be too hard to find motivation for that."
Babcock said he thought the Maple Leafs would be more motivated in Game 4, especially because Bruins first-line center Patrice Bergeron was scratched shortly before the game with an upper-body injury.
"When Bergeron didn't play tonight, you're set up pretty good," he said. "You've got to find a way to win. This is in our building, you've got to win."
One positive for Toronto: It will get center Nazem Kadri back for Game 5 following his three-game suspension for a hit on forward Tommy Wingels in Game 1.
"He's a big part of our team," van Riemsdyk said. "But the truth is, we have no margin for error now.
"None."