He played two full seasons in Atlanta, two more for the Toronto Maple Leafs and for the Canadiens in the lockout-shortened 2012-13 season before finishing his career in Sweden, playing 47 games for the Växjö Lakers. Presumably, 10 playoff games for the Lakers didn't quite match the spine-tingling intensity he felt in Pittsburgh and Montreal.
With his self-deprecating sense of humor, Armstrong, 33, was always one of the best interviews in the dressing room. In Montreal, he laughed in the face of hockey analytics, saying his puck-possession statistics would be weak given his role was primarily to chase the opponent around the rink and try to take it off him.
Armstrong and his wife, Melissa, have settled back in Pittsburgh with their three young children, moving into the jinx house they'd rented for a few years to now-retired Penguins forward Craig Adams.
Armstrong was in Red Deer, Alberta, covering the Memorial Cup for Sportsnet when he got a call from his radio station pitching him the Stanley Cup Final.
"I told them, 'Heck, yeah,'" said Armstrong, who arrived in Pittsburgh in time to report on Game 1.
He has been impressed by the Penguins all season, even during the days when it seemed they wouldn't make the playoffs. Pittsburgh's style of play, he said, might be changing the way teams of the future will be built.
"They've kind bucked the trend of what NHL hockey is supposed to be like," Armstrong said. "I'd say, 'They need a big, strong [defense], they need this guy, that guy, a big power forward, somebody with some bite.' I'd wonder how they could possibly match up against a team and then they'd beat them handily.
"They've surprised me. They've been a great story, really awesome. They're changing hockey. This is a copycat league. You see the way these guys play with speed and transition. … I've described them as mosquitoes, coming at you, darting around as you swat them away, but they keep coming. They're like a whole other animal. I don't think a lot of teams have seen anything like this."