Marc DesRosiers-USA TODAY Sports

The New York Islanders’ victory over the Ottawa Senators last night came at a massive price.

Early in the first period, Adam Pelech absorbed a hit into the wall and left the ice screaming in pain while clutching his arm. Sebastian Aho joined him in the Islanders’ dressing room minutes later after he was sent crashing into the boards.

Neither returned to the game, forcing the Islanders to play the rest of the night with just four defensemen.

Noah Dobson and Alexander Romanov both set career highs in ice time, while Ryan Pulock and Scott Mayfield established their best of the season bests as well.

Even though their performances were admirable, there’s no reason for those four to carry such a heavy workload in the Islanders’ next game tonight, never mind much longer. The only problem is they may have to, as the Islanders lack organizational depth on the back end.

The first option to be inserted into the lineup if either Pelech or Aho can’t play is Samuel Bolduc.

The 22-year-old has played sparingly this year, dressing only when another defenseman was hurt. But even when Bolduc has played, it hasn’t been for very long. He’s averaging just 9:38 of ice time across 1o games.

If it’s determined the Islanders must go without Pelech and Aho, they’ll need to make an emergency call-up from AHL Bridgeport for a player with even less recent experience in the NHL than Bolduc.

Of the options the Islanders have, Dennis Chowlowski has the most NHL tenure of the bunch.

Previously spending time with the Detroit Red Wings and Seattle Kraken, the 25-year Cholowski has played in 170 career games. His last stint in the NHL came back in January when he played two games for the Islanders.

Cholowski has been the best puck mover in Bridgeport this season, with nine assists to go along with a goal.

As a left-handed shot, Cholowski could be penciled into the lineup without forcing head coach Lane Lambert to do too much shuffling.

Robin Salo is another candidate, as he’s played in 32 NHL games for the Islanders across two seasons. Salso was in the Islanders’ opening night lineup last year but spent the next few months back and forth between Long Island and Bridgeport, where he’s stayed since last December.

In 16 games this year in Bridgeport, Salo has four points with two goals and is a -4.

Not an overly physical player, Salo fits a mold closer to Aho than he does Pelech, so he may not be the best fit to eat up minutes on the penalty kill where the Islanders will desperately need someone to.

In that sense, they could consider bringing up either Grant Hutton or Paul LaDue. Both stand at 6-foot-3 and weigh north of 200 pounds but shoot right-handed, and only LaDue has played in the NHL in the last year, albeit for just one game.

Many have criticized Islanders president/GM Lou Lamoriello for not making high-profile changes to the team’s roster over the offseason. However, maybe his biggest oversight was not adding depth to the blue line.

Now, the Islanders may have to pay for it.

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