For the first time in his quickly burgeoning NFL career, there is cause for concern surrounding Malik Nabers.

This certainly wasn’t the update anyone invested in the Giants wanted to hear. An offense that is already struggling to produce — averaging 15 points per game, tied for third-fewest in the NFL — could be without by far its top weapon.

Head coach Brian Daboll did not provide much optimism on the stud rookie receiver, who suffered a concussion during the team’s 20-15 loss to the Cowboys last Thursday. Nabers did not practice on Wednesday and remains in the “early stages” of the NFL’s concussion protocol.

Given that Nabers has had extra time to recover with the Giants last playing on Thursday, the fact he’s barely progressed at all in the protocol is worrying.

There are five steps in the protocol to be cleared — the third is football-related exercise with no symptoms afterward, which Nabers has yet to complete. Daboll would not say if he has even begun running yet, which is the second step.

Nabers, whom the Giants drafted with the No. 6 pick in the 2024 NFL Draft, suffered the concussion late in the fourth quarter. He tried to keep his feet in bounds while making a catch near the sidelines, but failed to do so and subsequently hit his head on the ground.

“The guys that are out here practicing will go ahead and take [Nabers’] reps,” Daboll said. “That will give Jalin [Hyatt] more reps today than he’s had in practice. Everybody’s got to be ready to go.”

Nabers has carried almost all of the offense so far. He leads the NFL with 35 receptions and 52 targets, is second with 386 receiving yards and tied for third with three receiving touchdowns.

Nabers’ 35 receptions is the second-highest four-game total to start a career in league history, according to Elias Sports Bureau.

As a team, the Giants have 881 receiving yards, meaning Nabers’ 386 represent 43.8 percent of their total.

If Nabers can’t play, who the heck is going to catch the ball?

“If he’s not [ready], I’m gonna take advantage of the opportunity,” Hyatt told The Post after practice. “I’m gonna be ready. … These opportunities, they don’t come a lot in the NFL.”

The second-year receiver — last year’s third-round pick — would likely elevate into a bigger role if Nabers is out. Hyatt’s lack of playing time, after a quiet rookie season, has emerged as one of the biggest early-season storylines. He has no catches this year and has only been targeted three times, playing just 19 percent of the team’s snaps on offense.

Two weeks ago, Hyatt denied a report he had shouted a request to be traded during a training camp practice.

His chance to prove himself could now finally present itself.

“My confidence never goes anywhere and that’s one thing I can say I’m really proud about myself,” Hyatt said. “But I gotta take advantage of that and use that confidence in the game.

“I still believe I’m the best, I’m always gonna believe that.”

Quarterback Daniel Jones praised Hyatt’s demeanor throughout his lack of playing time.

“I think Jalin has handled it well,” Jones said on Wednesday. “He’s a pro, he’s a mature guy. You’ve seen it out at practice. He’s continued to show up and make a lot of plays. I know it’s frustrating for a guy not to get those opportunities on Sunday, but I thought he’s handled it well. I have a ton of confidence in him out there making plays, changing the game with his speed and ability to get behind the defense. So, I know he’ll be ready to go.”

Jones has targeted Nabers with 38.2 percent of his throws. Wan’Dale Robinson is second on the team with 26 receptions and 194 receiving yards, followed by Darius Slayton with 10 catches and 122 yards.

And Jones has delivered three straight solid performances after his Week 1 disaster. But he’ll have to dramatically change his approach if he doesn’t have Nabers at his disposal on Sunday.

“There’s no doubt he’s been a big part of our offense so far and someone who we’ve counted on in a lot of spots,” Jones said. “So, it’ll change a little bit. But the guys we got out there, we have a lot of confidence in them winning their matchups and getting open. I know we’ll play well. So, we’re confident in whoever’s out there and we’re lucky to have a deep group of receivers and a lot of talented guys.”