SAN JOSE >> San Jose Sharks center Macklin Celebrini electrified a sold-out SAP Center crowd during his dazzling NHL debut.

Now it’s a matter of when he’ll have the opportunity to do it again.

One night after playing in his first NHL game, Celebrini missed Friday’s practice with an injury, leaving his status for Saturday’s game against the Anaheim Ducks in question.

Sharks coach Ryan Warsofsky said after Friday’s practice that Celebrini had a lower body ailment and was being evaluated, and could not say whether the 18-year-old center might have to miss the team’s second game of the regular season.

Warsofsky also wouldn’t confirm whether Celebrini’s lower-body injury is related to the one that kept him out for part of the preseason. In an Oct. 1 game against the Utah Hockey Club, Celebrini aggravated a lower-body injury, left midway through the second period, and didn’t play in the Sharks’ final two exhibition games.

Celebrini scored the first two points of his NHL career on Thursday before a raucous crowd as the Sharks built a three-goal lead over the St. Louis Blues in the second period. Celebrini scored the first goal of the Sharks’ season at the 7:01 mark of the third period and later assisted on a goal by Tyler Toffoli.

But the Sharks let up and allowed three goals in the third period, including the tying goal with 47 seconds left in regulation, before Brayden Schenn scored just 45 seconds into overtime to give the Blues a 5-4 win.

Celebrini had 17:35 of ice time in the game. His last shift of the third period came with less than four minutes to go, and he was on the ice for the start of the 3-on-3 overtime. He spoke with reporters afterward, saying his NHL debut was “everything I thought it would be for my first game, and it was an amazing experience and one I’ll cherish for my whole life.”

Celebrini, at 18 years and 119 days old, is the youngest Sharks skater to have two points in his NHL debut. He replaces Marco Sturm, who was 19 years and 26 days old on Oct. 4, 1997, when he had a goal and an assist in a game against the Chicago Blackhawks.

On his goal, Celebrini took a pass from William Eklund as he entered the Blues’ zone and took a couple of strides before he turned around in front of Blues defenseman Ryan Suter and sent the puck toward the middle of the ice. The pass was intended for Eklund, but the puck went off Blues defenseman Matthew Kessel and slid past goalie Joel Hofer.

Celebrini didn’t know the goal was his until Eklund told him it was.

“Because I was like, ‘Nice goal,’ and he was, ‘I didn’t score, you did,’” Celebrini said Thursday night. “I thought he was just super excited that he scored, but I guess he was happy for me.”

Celebrini’s goal not only set off the capacity crowd at the Shark Tank, it was also the second-fastest by a No. 1 overall pick in his NHL debut in league history. Mario Lemieux, selected first overall by the Pittsburgh Penguins in 1984, scored 2:59 into his debut on Oct. 11, 1984. Both players scored on their first career shot on goal.