But two team sources told ESPNBoston.com's Joe McDonald that Bergeron will play, barring a last-minute setback.
"He's still day to day until I'm told that he's clear," head coach Claude Julien said Thursday morning. Bergeron did not speak to the media after the morning skate.
Regardless of Bergeron's health, rookie Tyler Seguin will stay in the lineup, having put up six points in his first two NHL playoff games.
If Bergeron goes into the lineup, look for Shawn Thornton to earn a seat in the press box.
The Lightning will have rookie Dana Tyrell at their disposal for Game 3. The winger has not played since getting injured in practice after Game 4 of the first round of the playoffs.
Lightning coach Guy Boucher didn't say if Tyrell would dress. He had no points in his first four playoff games and was averaging just 8:26 a night in ice time.
After sounding slightly more optimistic on Wednesday about the prognosis for injured defenseman Pavel Kubina, Boucher said Thursday there is still no timetable for his return to action. He was injured in the first game of the second round against Washington.
"Kubina, right now, we're going to wait," Boucher said.
Roloson moving past Game 2
Boucher reiterated that he expects a complete bounce-back from netminder Dwayne Roloson in Game 3. Roloson was lifted after allowing five goals on nine shots in the second period of the Lightning's 6-5 loss in Game 2.
"He's built some mental tools over the years that some young guys don't have. And that is, for him it's all about a 12-hour thing. Beyond 12 hours you can't even talk to him about it because it doesn't exist. It's a great mental tool that takes a long time and takes a mature man to be able to do that. That's where he is right now," Boucher said.
Ever wonder what the difference is between coaching in the NHL playoffs and the AHL playoffs or major junior playoffs is?
No? Neither had Boucher.
"I didn't really think about it, to be honest with you. Maybe I should. I guess what's similar is the fact that every day is a very intense day where you've got to find solutions and you're playing against the same teams all the time, and it becomes a battle of details and I don't think that's any different from any league," he said.
"I mean, basically from one league to another, players are better. Coaches are better. And you got to be better. But in the end, the same kind of feeling. It's a do or die every game."
By the numbers
Vincent Lecavalier's four-point effort in Game 2 was a franchise playoff record for points in a game. He has collected at least a point in 10-of-13 postseason games this spring. He has four goals and six assists in his last six games.
The Lightning are 8-1 when they score first, but perhaps more impressive is the fact they have gone out in front in nine of their 13 postseason games. The Lightning have been outshot in 10-of-13 games so far this postseason but they have won seven of those games.