NEW YORK (CBSNewYork) — Adam Pelech made an excellent first impression with the Islanders. He may not get to make a second one for some time.

According to Newsday, the impressive rookie defenseman may be out for the season due to an upper-body injury suffered last week in a game against the rival Rangers.

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While the exact nature of the injury has not been released by the team, head coach Jack Capuano told Newsday the ailment is a “freak thing.”

Pelech stepped in nicely for the Isles following injuries to studs Johnny Boychuk (shoulder, out four to six weeks) and Travis Hamonic (foot, two to three weeks), posting a pair of assists and an even rating in five games while averaging roughly 18 minutes of ice time. While not flashy, the 21-year-old Canadian showed tremendous defensive awareness and a penchant for moving the puck.

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Capuano said Wednesday there is a chance Hamonic could return Friday at Ottawa, the first of three games the Islanders will play leading into the All-Star break.

For the time being, New York will continue to utilize veterans Brian Strait and Marek Zidlicky, in addition to rookie Scott Mayfield, in the second and third pairings.

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The Islanders are currently in third place in the Metropolitan Division, one point behind the Rangers.