Dustin Brown played in his last NHL regular-season game for the Kings (44-27-11) after announcing earlier on Thursday that he will retire following the Stanley Cup Playoffs. Los Angeles, which had its five-game winning streak ended, will play the Oilers in the Western Conference First Round.
"He said it himself, he said that he's thankful for this opportunity to be able to go into the postseason and go out swinging, not just in the last regular-season game and that's it," Kings captain Anze Kopitar said. "So obviously, we'll pour everything we have into this playoff run and see where it takes us."
Kopitar also made Brown captain for the game, a position he held from 2008-16, including when the Kings won the Cup in 2012 and 2014.
"I think it's appropriate, a long-serving guy that lifted the Cup wearing the 'C,'" Los Angeles coach Todd McLellan said. "Tip of the hat to Anze for thinking of that and executing it and making it happen. That wasn't management-driven or coach-driven, and that just goes to show how great individuals are and what they mean to each other. Very honorable thing to do."
Petersen made 26 saves in his first start since April 10. He had not played since allowing six goals on 25 shots in relief of Jonathan Quick in a 9-3 loss at the Colorado Avalanche on April 13.
Boeser cut it to 2-1 at 6:52 of the third period with a one-timer from the high slot off a pass from Pettersson on a power play.