TAMPA, Fla. -- The Tampa Bay Lightning got key goals and strong goaltending and have finally won three in a row.
"Big saves. He played great," Lecavalier said about Niittymaki, who made his seventh consecutive start.
"They answered the bell," Lightning coach Rick Tocchet said.
Lecavalier gave the Lightning a 2-0 lead at 2:23 of the second when he put his stick between his legs and sent a shot past goalie Carey Price.
"It was kind of scramble play and those good players find a way to make a good play," Price said.
Niittymaki recorded his first shutout of the season and fifth overall. He made a glove save during a first-period breakaway by Montreal left winger Benoit Pouliot.
"Early in the game it's big," Niittymaki said. "They might get the momentum there if the guy scores."
Montreal was coming off a 2-1 loss Tuesday night at Florida. Canadiens coach Jacques Martin remains tied for ninth place on the career NHL coaching victory list (542) with Billy Reay.
"It's disappointing to come down here and play two, for the most part, uninspired games," Canadiens defenseman Ryan O'Byrne said.
The Canadiens have lost five of seven.
"No one's going to feel sorry for us," Montreal center Scott Gomez said. "We've got to regroup. We've got to come up with a new game plan and go at it again."
St. Louis put the Lightning up 1-0 from the low slot off a pass from Steve Downie at 9:50 of the first.
After Lecavalier scored early in the second, Stamkos made it 3-0 on his 28th goal this season from the left circle during a power play with 14:06 left in the period.
"All in all, Tampa had a great game from minute zero to minute 60," Price said.
Montreal left winger Mike Cammalleri had his five-game points streak (five goals, eight points) end.
The teams were sent to their locker rooms with 1:38 left in the second to allow for the repair of a broken pane of glass. After a normal between periods break, the third period was started immediately after the remaining time in second was played.
Stamkos has goals in three straight games. ... Montreal defenseman Jaroslav Spacek didn't play due to the flu. ... Lightning goalie Mike Smith returned as the backup after missing the previous six games because of a strained neck. ... Montreal defenseman Paul Mara (upper body) missed his third straight game.