Updated

Uniondale, NY (SportsNetwork.com) - The New York Islanders placed forward Mikhail Grabovski on injured reserve Wednesday, with the move retroactive to Oct. 16.

Grabovski is out indefinitely and hasn't played since suffering a concussion as a result of absorbing a clean, hard, open-ice hit from San Jose's John Scott last Thursday.

The 30-year-old center contributed two goals and one assist to the Isles' 4-0-0 start to the season, after the club inked him to a four-year contract at the outset of free agency in July.