The Kings are in seventh place in the eight-team Honda West Division, five points behind the fourth-place Arizona Coyotes with three games in hand. The Ducks are in eighth, 10 points behind the Coyotes. The top four teams will qualify for the Stanley Cup Playoffs.
"Had a bit of a rough stretch a little bit ago and we're still within reach of a playoff spot, we feel," Lizotte said. "We believe that we can get there, so it's playoff hockey this time of year and the intensity [will] just continue to ramp up. I think we just need to focus on our details of our game. When we take care of our details, we're tough to beat."
The Kings went up 1-0 at 5:26 of the first period on Grundstrom's sixth goal when he was hit in the back by the puck after Athanasiou sent it toward the net from the left point on the rush.
"He has scored a couple of those this year, so we made some jokes," Lizotte said. "We'll take 'em how we can get them, I guess."
Anze Kopitar made it 2-0 at 8:31 of the second period when he scored his 10th goal on a breakaway set up by Drew Doughty's stretch pass.
Athanasiou scored on a one-timer from the right face-off circle to extend the lead to 3-0 at 10:48. He has five points (two goals, three assists) in his past four games.