Ovechkin scored twice in the first period and then off a pass from a spinning Tom Wilson at 15:42 of the third period.
"It was sick, obviously," Ovechkin said of Wilson's pass. "Not lots of great players can do that, but you can see how he's grown up as a player, as a leader, and basically he can do everything out there. You can see when he makes that pass, and even [linemate Nicklas Backstrom] said, 'Wow, what a play.'"
Ovechkin, who went to the locker room for stitches after a high stick to the face by Devils forward Miles Wood early in the first period, returned and made it 1-0 at 15:17 during a 5-on-3 power play with a one-timer from the top of the left circle.
"I could just tell when he got that high stick in the first there and then he got [ticked] off, and he always plays better when he's a little [ticked] off," Backstrom said. "So, came back, got a little mad, scored two, and then I was just waiting for the third. That's the story of Ovi, I think."
The Capitals took a 2-0 lead when Ovechkin got the puck after a face-off and scored on a wrist shot from the left circle with 52 seconds left in the first.
Carl Hagelin made it 3-0 when he scored on a one-timer from the slot 16 seconds into the second period.
"They came out ready to play," Nasreddine said of the Capitals. "They kept it simple. They put it behind our [defensemen]. They went to work. Our execution wasn't great early on, which gave them extended [offensive]-zone time."