Rookie Sean Walker Scores First NHL Goal Against Avalanche ...Twice!

Before the calendar flipped to 2019, LA Kings rookie defenseman Sean Walker had himself a milestone moment.
...and then he had one that counted.
In the 13th game of his career, Walker scored his first NHL goal as the Kings defeated the Colorado Avalanche, 3-2 in OT.

The defenseman appeared to make it 1-0 in the first period, but the call on the ice was ruled no goal because of goalie interference. Kings coach Willie Desjardins challenged the play, but the call was upheld after a video review.

...sigh.
Jake Muzzin said the whole team told Walker that his moment would come.
"We were just telling him to keep going," Muzzin said. "Hopefully the hockey gods will reward you with one, and they did."
With the Kings up 1-0 in the second period, the defenseman jumped up into the play and, this time, there was no calling it back.

"It's definitely one I'll remember," Walker said after the game. "Obviously, it's surreal. Everyone is congratulating [me], and it's pretty special."

It was a momentous ocassion for Walker, who also shared what he did with puck from the disallowed goal.
"You want to get your first one out of the way," Walker said. "I got the puck on the first goal and when they disallowed it, I threw that puck into the crowd. I have the one that counted."