Buffalo Sabres face Boston Bruins in a clash of youth vs. experience. The Sabres' lack of playoff vet talent worries analysts, but their home-ice edge and 28.8 goals saved above expected by Swayman make them favorites. Boston's 46.7% expected goals percentage and injury-depleted defense suggest a five-game series win for Buffalo.

Tampa Bay Lightning draw Montreal Canadiens in a battle of offensive firepower. Nikita Kucherov's 1.71 points per game could dominate unless Nick Suzuki's line stifles him. Tampa's depth concerns and Andrei Vasilevskiy's presence give them a six-game series edge despite Montreal's dynamic top line.

Carolina Hurricanes square off against Ottawa Senators, where Linus Ullmark's shaky .885 playoff save percentage looms. Carolina's Shane Pinto vs. Ottawa's Jordan Staal defensive battles may decide this seven-game series. Rod Brind'Amour's 0-for-0 playoff opening-round record adds pressure on the Senators.

Pittsburgh Penguins meet Philadelphia Flyers in a physical rivalry series. Both teams rely on blue-line scoring, but Ottawa's Thomas Chabot injury uncertainty and Carolina's brick-wall goaltending debates could sway outcomes. Expect game-changing special teams play in these high-stakes first-round matchups.