"As soon as we realized Subban was going in we were talking to each other in the locker room saying, 'Let's make sure to be strong for him,'" Bellemare said. "He hasn't played in a while and he needed us to play a strong defensive game. I think we managed pretty well."
Sutter scored for Vancouver (25-39-9), which lost for the seventh straight time, its longest streak since losing eight in a row from March 26-April 9, 2017. Jacob Markstrom made 24 saves in his fifth straight loss.
"I didn't think we had the start we needed to to play against a good team," Sutter said. "Teams like that that are fighting for playoff positioning, they're playing well right now, and we've got to match it."
Marchessault ended an 11-game goal drought at 3:56 of the first period to give the Golden Knights a 1-0 lead. Eakin scored 57 seconds later to make it 2-0.
"I had good chances the past couple of games, and that's just the way it went," Marchessault said. "You just have to stick with it. Slumps are going to happen throughout the season, and it was good to get one past the goalie."
Bellemare scored his first goal since Jan. 21 with 33 seconds remaining for a 3-0 lead.