Boston Bruins left wing Brian Rolston (12) checks Ottawa Senators defenseman Jared Cowen (2) into the boards during the first period of an NHL game in Boston Tuesday, Feb. 28, 2012.Elise Amendola/The Associated Press
Ottawa Senators defenceman Jared Cowen underwent surgery on Saturday in New York to repair a torn labrum in his left hip.
Cowen is expected to make a full recovery, which is expected to take between six and eight months.
The 21-year-old played in all 82 games during his rookie season with the Senators last year, scoring five goals and adding 12 assists. He finished the season with a minus-4 rating.
He also played in all seven games of Ottawa's playoff series against the New York Rangers. He had an assist and four penalty minutes in the post-season.
Cowen played in three American Hockey League games with the Binghamton Senators this season. He had three assists in that span.
Cowen was the Senators' first-round pick — ninth overall — in the 2009 NHL Entry Draft.