That the Stars do. With John Klingberg sidelined by a lower-body injury he suffered in the season opener, there has been much weight on the shoulders of Heiskanen. Dallas has a solid group of defensive blueliners, but they don't have a ton of skilled puck-movers. So, with Klingberg out of the lineup, Heiskanen has been called on to help the Stars in all sorts of ways.
After five games, Heiskanen is second in the NHL in average time on ice at 27:14 and is tied for second in defenseman points at six (two goals, four assists). More importantly, his team is 3-2-0 while not playing great and missing Klingberg, Jason Robertson and Blake Comeau.
Asked what the biggest challenge the team faces without Klingberg, Bowness says it's matchups based. "It's easier for the opposition without John to get the right guys on the ice against Miro and contain him a little bit," Bowness said. "John gives us that other element where now you've got to worry about two guys coming up offensively."
That just underscores how impressive Heiskanen has been. Klingberg twisted his leg against the Rangers, and Heiskanen played 26:28, with a goal and an assist, including the overtime game-winner. In a 3-1 loss to Boston, Heiskanen didn't have a point but played 28:21. In a 3-2 loss at Ottawa, Heiskanen played 27:47 and had five shots on goal. Then, in a 3-2 shootout win at Pittsburgh, Heiskanen played 24:27 and had an assist. And he of course followed that with Friday's dominant performance.
Along the way, the Stars saw some great defensemen. Adam Fox won the Norris Trophy last season and had a great game for the Rangers. You could argue Heiskanen had a bigger impact on that game. He was as impactful as Boston's Charlie McAvoy, who just signed an eight-year deal that averages $9.5 million. He was as good as Ottawa's Thomas Chabot. He matched strides with Pittsburgh's Kris Letang, who has won three Stanley Cups.