(Denver) Alex Wennberg had a goal and an assist, Philipp Grubauer stopped 34 shots and the Seattle Kraken made their playoff debut by beating the defending Stanley Cup champion Colorado Avalanche 3-1 , Tuesday evening.

The Kraken, which has only been around for two years, became the 13th expansion franchise to earn a win in their playoff opener, according to NHL Stats.

Eeli Tolvanen scored the first goal in team playoff history early in the first period, and Morgan Geekie sealed the game by rattling the net in the third period.

Mikko Rantanen was the lone scorer for the Avalanche, who saw their 10-game first-round winning streak come to an end.

Alexandrar Georgiev made 27 saves. He is coming off a career-best 40-win regular season.

Game 2 is Thursday in Denver.