Colorado's team captain Gabriel Landeskog excelled in the away game in Nashville, which was dominated by powerplay goals.
Colorado accounted for four of them.
One of them was Landeskog, when in the second period he hit a return that meant a 3-2 lead.
Nashville struggled, despite being inferior for much of the game, and managed to equalize on two occasions.
But when Landeskog via the crossbar scored their second goal of the evening, the Tennessee team did not manage to fight in the race anymore.
The goal meant 4-3, and three more pucks eventually slipped Colorado's way, and the match ended 7-3.
Best on the ice
With two goals and also two assists, the 29-year-old former Djurgård player was unsurprisingly named the match's best player.
- I think we all know that it is not about individual statistics in the playoffs.
It's about wins and losses guys.
Let's enjoy this (victory) and we'll drive on tomorrow, he said to his teammates in the locker room after the victory.
The win was the third straight for Colorado in the game series, against zero for Nashville, and Colorado is thus just a victory from advancement.
The next match will also take place at Nashville's home ice.
- They have their backs to the wall at home, you never want to be knocked out in four straight at home.
We want to try to end this and not give them any hope, Landeskog says according to The Denver Post.
A cloud of concern is Colorado goalkeeper Darcy Kuemper, who left the ice at the end of the first period after getting a club in the eye.
According to coach Jared Bednar, he is swollen, but not seriously injured.
Johansson goal scorer
In the other quarterfinals played overnight on Sunday, Pittsburgh defeated the New York Rangers 7-4, Pittsburgh taking the lead 2-1 in games.
Washington beat Florida 6-1.
Marcus Johansson accounted for one goal and one assist, Nicklas Bäckström for two assists and Johan Larsson for one.
Washington leads 2-1 in matches, after losing the previous one 1-5.
- We came out harder and answered, the last match made us a little cursed.
We played well for 60 minutes, I think we had to work hard for it in the beginning, but we deserved the victory and the goals we scored.
It was generally a good team effort, says Johansson at the press conference.
MORE NHL: The bizarre accident in the NHL - knocked out by plexiglass
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Bizarre accident in the NHL - knocked out by plexiglass Photo: TT News Agency