Center John Mitchell had a goal and an assist for the Avalanche, who moved past Chicago into second place in the Central Division with 100 points in what might have been a costly victory.
Centre Matt Duchene suffered a left knee injury on the opening shift Saturday when he collided with teammate Jamie McGinn near the Sharks blue line. He fell to the ice and then gingerly skated to the bench.
Mitchell moved up to centre Colorado's top line, and came through with a big power-play goal to give Colorado a 3-1 lead at 6:32 of the second period.
It was a different game in the past, that's for sure. It's not exactly what I was expecting but I think the experience paid off for a lot of our guys that realized what it takes in a Game 7. Realistically the effort we put forward, we might not even had to put 60 [minutes], but we just couldn't get a couple bounces to go our way and we just kept pushing.
— Capitals goaltender Braden Holtby on his team's play in a Game 7 win vs. the Islanders