The defenseman appeared to sustain the injury at 1:43 of the first period following a collision with Golden Knights defenseman Zach Whitecloud. He played one more shift on the power play before he was seen visibly limping down the tunnel to the Jets' locker room.
"He's got a lower body and he's done for the series," Winnipeg coach Rick Bowness said. "Now, when we get into next week, I'll be able to give you a better answer (about timeline going forward). I just know he's done for the series."
RELATED: [Complete Golden Knights vs. Jets series coverage]
During the regular season, Morrissey was second on Winnipeg with an NHL career-high 76 points (16 goals, 60 assists) in 78 games, trailing only forward Kyle Connor (80 points in 82 games). He also led the Jets with 24:14 time of ice time per game.
Morrissey had one assist in three games against the Golden Knights.
"We played all year long with a lot of injuries. Every team does and it's next man up," Bowness said. "He's a top five 'D' in this league right now. He plays all the important minutes and he's a guy that drives the offense. It's a big hole, but we played the rest of the game without him and scored four, so we're going to have to find a way to play the rest of the series without him because this series is far from over."
Golden Knights coach Bruce Cassidy said Morrissey's injury wouldn't impact how they approach the rest of the series.
"Obviously, that's a heavy-minute, highly-productive player that they'll miss, and their depth will have to come through for them," Cassidy said. "Someone else will have to step up. I mean, look at their 'D' corps today, right? They stepped up, obviously. Their guys were ready to play. That's a tough break in the playoffs to lose a guy like that, but it won't change how we're going to play."
