Clattenburg (eye) has been moved from injured reserve to long-term injured reserve, the team announced Sunday.
The transition to long-term injured reserve likely doesn't affect Clattenburg's original injury timeline, but it allowed the Oilers to activate Jack Roslovic (undisclosed) in a corresponding move. The 20-year-old Clattenburg has one goal in five games on the season, but he has been out since Dec. 6 with injury.