A lot of the talk heading into Game 1 of the Boston Bruins' first-round Stanley Cup playoff series with the Toronto Maple Leafs centered around the Leafs' unsafe power play unit.
Back in November, Marchand and Komarov got tangled up in a scuffle. He earned a five-minute major for charging and a game misconduct.
The Bruins' second goal with the man advantage came after the Leafs wasted two power-play chances of their own earlier in the period.
After Seth Jones scored on a power play late in the third period to send the game to overtime, Panarin scored the game-winner by completing an incredible rush where he blew past Dmitry Orlov and then casually roofed a shot under the crossbar, beating Capitals goalie Phillip Grubauer from a sharp angle. David Backes buried his first of the playoffs when Krejci fed him in front and Leafs defenseman Ron Hainsey couldn't clear Backes out. He also contributed an assist in the second period to David Pastrnak's goal. He made his move in the first period.
The Bruins finished the regular season with 112 points, good for second in the Atlantic Division and fourth in the overall standings.
Krejci made it 5-1 from a awful angle on the power play at 11:29.
The Leafs found their legs and matched the B's for the rest of the period. Sean Kuraly eventually broke through with an eye-popping play to bat the puck out of the air and into the net to make it 4-1.
The Boston Bruins remember what happened last time they met Toronto in the National Hockey League playoffs.
Despite taking back the lead, the Bruins could've used another goal to really put the pressure on the Leafs for the third.
Of course by that point in the game, Marchand was already on the board with Boston's first postseason goal in 2018, which gave the Bruins an early 1-0 lead.
Andersen made a couple of big stops to keep the deficit at one before Hyman tied it on a great individual effort at 16:52.
There's been plenty of turnover on both sides since, but Boston's core - including Marchand and Bergeron - that made it all the way to Stanley Cup final that year remains largely intact.
They got another lesson Thursday about what it takes to win at this time of year.