Calvin de Haan
, the New York Islanders
' second first-round pick in last June's Entry Draft, is scheduled to have shoulder surgery on Thursday, and the team said Tuesday he's expected to miss six months.
De Haan, a star defenseman for the Oshawa Generals of the Ontario Hockey League, left Sunday's game against the Saginaw Spirit in the first period with an upper-body injury.
On the play, de Haan got tied up with a Spirit forward along the sideboards and went down awkwardly. He skated off the ice hunched over and immediately went to the dressing room.
The 18-year-old was taken with the No. 12 pick in the draft. He nearly made the Isles' roster out of training camp before being returned to Oshawa, and was a member of Canada's silver medal-winning team at the World Junior Championships. De Haan has 5 goals 19 assists with a plus- 5 rating in 34 games with the Generals.