Islanders’ Noah Dobson out vs. Rangers with upper-body injury

The Islanders had no choice but to play without Noah Dobson on Saturday against the Garden because the defenseman sustained an upper-body injury two days ago that kept him out for the game against the Rangers.

Dobson will miss the first game of the season due to injury, but was declared day-to-day by coach Patrick Roy.

Beyond that, with just two regular season games left after Saturday, it’s unclear when he will return.

“Well, it’s a big part of our team, but when we lose again, [Scott] Mayfield, we gave other guys a chance and we’re approaching them the same way,” Roy said.

Noah Dobson will miss Saturday’s game between the Islanders and the Rangers. AP

The Isles have been plagued by injuries on the team’s blue line for most of the season, but Dobson has historically been the only defensive player in the opening lineup to avoid missing time due to injury.

Adam Pelech, Ryan Pulock, Scott Mayfield, Sebastian Aho, and Robert Bortuzzo have all been sidelined since October, but all but Mayfield are out for the rest of the year due to surgery. He is currently healthy.

Bortuzzo returned to the lineup Saturday, playing Dobson in a pairing with Alexander Romanov.

Aho was paired with Mike Riley, and Perec and Purok were together.

Simon Holmstrom suffered a healthy scratch as Hudson Fassing fell back and slipped on the second row with Brock Nelson and Kyle Palmieri.

“He’s young, he’s learning, and we want Fash to play. You know what that’s like,” Roy said. “We’re on the road here and we don’t know what’s going to happen after the season. We need everyone to be able and ready to play.

“We did it last game with Bortuzzo and Aho and we’ll do it again today. Everyone is healthy except Noah. The plan is to use everyone.”