Dan Vladar stopped 27 shots as the Philadelphia Flyers shut out the Pittsburgh Penguins 3-0 to take a 2-0 lead in their first-round series

Tage Thompson and the Buffalo Sabres entered their first-round series against Boston facing a myriad of questions over their lack of playoff experience

Nic Dowd redirected Noah Hanifin’s shot from the point to put Vegas ahead at 7:20 of the third period and the Golden Knights beat the Utah Mammoth 4-2 on Sunday night in Game 1 of their first-round series

Mattias Samuelson broke a tie with 3:24 left and Buffalo overcame a two-goal deficit in the final eight minutes to beat the Boston Bruins 4-3 on Sunday night in the Sabres’ first playoff game in 15 years

Juraj Slafkovsky scored his third power-play goal 1:22 into overtime and the Montreal Canadiens beat the Tampa Bay Lightning 4-3 in Game 1 of their first-round series on Sunday night

Logan O’Connor scored for the first time in a year, Scott Wedgewood stopped 24 shots in his first Stanley Cup playoffs start and the top-seeded Colorado Avalanche beat the Los Angeles Kings 2-1 in Game 1 on Sunday

The Philadelphia Flyers silenced doubts about their young roster with a 3-2 win over the Pittsburgh Penguins in Game 1 of their first-round playoff series

Matt Boldy had two goals with an assist, Joel Ericksson Ek scored two power-play goals and rookie goalie Jesper Wallstedt stopped 27 shots in his postseason debut to help the Minnesota Wild beat the Dallas Stars 6-1 in Game 1 of their Western Conference playoff series

The Dallas Stars and Minnesota Wild are getting ready to start a first-round playoff series that has been expected for months