The new deal will keep King at Old Trafford until the summer of 2013.
King’s previous deal was set to expire this summer.
The Norway Under-19 international spent time on loan at Preston last year and United rate the youngster as one for the future.
The new deal will keep King at Old Trafford until the summer of 2013.
King’s previous deal was set to expire this summer.
The Norway Under-19 international spent time on loan at Preston last year and United rate the youngster as one for the future.
