BRIGHTON, Mass. – Tuukka Rask has been outstanding through his first three games this season after stumbling out of the gate last year. The .947 save percentage and sub 2.00 GAA are all the more impressive for Rask when also accounting for a lower body issue that’s been nagging at him since the opening night win a little more than a week ago.

Rask stopped 28 of 29 shots against the New Jersey Devils Thursday night in a 2-1 win over the New Jersey Devils at TD Garden, but it was also clear on a couple of stops that he was feeling discomfort in his lower half as he extended into the full butterfly.

That was confirmed by Rask following the win when he admitted he was dealing with “something” after the game, and by his absence from the practice ice at Warrior Ice Arena on Friday morning.

“Uh-huh. There’s always a little something-something,” said a smirking Rask, when asked if he’s playing through something physically.

Instead, Babson College goalie coach Mike Ronan was called into emergency duty, and took the practice ice along with Bruins backup netminder Anton Khudobin.

Claude Julien said following practice that Rask was dealing with the same “general soreness” that last week pushed him out of a scheduled start against the Toronto Maple Leafs, and it’s uncertain whether he will make the start against the Montreal Canadiens on Saturday.

“The general soreness he had last week is still there,” said Julien. “[The medical staff] will see tomorrow how he's doing.”

Rask also missed a Bruins practice with soreness last Friday in Toronto, and wasn’t able to play the next night in the loss to the Maple Leafs. Injuries aside, Rask has been brilliant against both New Jersey and Winnipeg and was solid over the final 40 minutes against the Blue Jackets in an opening night win to start the season.

“Tuukka was outstanding in Winnipeg and he was good again [vs. New Jersey],” said Julien. “So, there are no issues with Tuukka. I think he’s giving us the hockey and the goaltending that we are looking for.”

Well, maybe there is one slight “issue with Tuukka” if a nagging lower body issue starts keeping him out of Bruins games and practices on the regular.

Here are the line combos and D-pairings at Friday practice:

Marchand-Bergeron-Pastrnak

Heinen-Krejci-Backes

Beleskey-Nash-Hayes

Schaller-Moore/Spooner-Acciari

Chara-Carlo

Morrow-Krug

Liles-C. Miller

O’Gara-McQuaid

Khudobin