Zetterberg last played for the Red Wings on Feb. 8. He played one game for Sweden in the 2014 Sochi Olympics before leaving the tournament because of a back injury. He had surgery to repair a herniated disc on Feb. 21.
Zetterberg started the game on a line with Pavel Datsyuk and Justin Abdelkader. He skated with them in the morning skate before leaving the arena to visit with the team doctors, presumably to go through the testing protocol so he could be cleared to play.
He had 48 points in 45 regular-season games, and has 114 points in 123 career games in the Stanley Cup Playoffs.
I downplayed the first one because I thought it's just a hockey game. We just want to win the game; it's against our rival and we want the two points. I downplayed it, but now having gone through the first one I look back and say, 'Geez, that was really cool.' I think as I've grown a bit older I've got a lot more appreciation for what we're allowed to do every day.
— Capitals forward Brooks Laich on the 2015 NHL Bridgestone Winter Classic, the second one of his career after 2011 in Pittsburgh