It was Krug and unusual punishment. TD Garden roared. Thomas didn't play again after that.
"You don't want to mess with that guy," Bruins defenseman Connor Clifton said. "Don't make that guy mad."
Don't poke the bear.
The Bruins have won eight straight games in the 2019 Stanley Cup Playoffs. They are undefeated since April 30, when they lost to the Columbus Blue Jackets 2-1 at Nationwide Arena and fell behind 2-1 in the Eastern Conference Second Round. They won three straight against the Blue Jackets, swept the Carolina Hurricanes in the conference final, didn't play for 10 days and looked rusty for, oh, maybe a little more than 20 minutes Monday.
Early in the second period, Pastrnak reversed the puck behind the Boston net, and no one was there. Blues center Brayden Schenn picked off the puck and passed in front, and forward Vladimir Tarasenko scored at 1:00.
The Blues led 2-0 and had a 9-8 edge in shots at that point. The rest of the game? The Bruins outscored the Blues 4-0 and outshot them 30-11.
Total domination.
"To be honest, the second goal, it was my bad," Pastrnak said. "It's not like they made a great play or something. It was always my bad turnover. So we didn't give them much. We were pretty good in our defensive] zone. We know we have a lot of skills in our group, so we knew the goals would come eventually."
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The Blues tempted fate by taking penalties and giving the Bruins five power plays, when the Boston power play entered the series humming at 34 percent. Bruins defenseman Charlie McAvoy tied the game 2-2 on the power play at 12:41 of the second.
Blues goalie Jordan Binnington has been incredible, coming up from the minors and leading St. Louis from last in the NHL standings the morning of Jan. 3 to the playoffs. But he failed to control a rebound when a shot hit him in the chest, and that turned into what would be the winning goal by Bruins center Sean Kuraly at 5:21 of the third period.
Most alarming for the Blues, they couldn't generate anything after taking that 2-0 lead. The Bruins held them without a shot for 12:49 in one stretch from the second period into the third.
"We picked up our game a little bit," Bruins forward Marcus Johansson said. "We got more physical and we started moving our feet, moving the puck, and we ended up spending more time in their end and didn't give them as much room. That's kind of when we started taking the game over."