Necas tied the game 2-2 at 10:23 of the third period. After Jaccob Slavin's shot hit Avalanche defenseman Andreas Englund, he picked up the puck and scored around Francouz's outstretched leg.
"They sustained it all night," Colorado defenseman Cale Makar said. "I felt like every single time, we were going back for pucks. Kudos to them. We, as a [defense corps], have to get a lot better at that to give our forwards chances. Overall, it showed a lot of character on our team tonight to be able to win that."
The Hurricanes had a power play with 1:49 remaining in regulation and had four shot attempts, including Francouz stopping a snap shot by Andrei Svechnikov from the slot with 10 seconds left.
"We've got to score on that one," Brind'Amour said. "We had a couple good chances. We've got to connect."
NOTES:Makar had a season-high 32:48 of ice time. … Francouz won his second game of the season (five starts), including a 4-1 victory against Carolina on Saturday. His 46 saves set a career high; he made 45 against the Hurricanes on Feb. 28, 2020. … Lehkonen scored his first NHL regular-season overtime goal. He has two overtime goals in the Stanley Cup Playoffs.