Canaries looking to win third straight game
Dmitri Halajko's side defeated Manchester United and Southampton at Carrow Road in recent weeks, with Jamar Loza netting five against the Saints.
Cameron King also struck twice as City secured a comprehensive victory in a sterling display.
City enjoyed a prolific spell in front of goal as they hit nine goals in back-to-back victories, but will have revenge on their mind when the Black Cats visit Colney.
The Wearsiders triumphed 3-1 when the sides met in the opening game of the season, with Josh Murphy netting a late penalty as Yann M'Vila was sent off for the hosts.
W - 7-2 v Southampton (H) 30/11/2015 - Barclays U21s Premier League
W - 2-0 v Manchester United (H) 23/11/2015 - Barclays U21s Premier League
L - 0-5 v Middlesbrough (H) 17/11/2015 - Barclays U21s Premier League
L - 4-1 v Brighton (A) 12/11/2015 - Barclays U21s Premier League Cup
L - 1-0 v Manchester City (A) 08/11/2015 - Barclays U21s Premier League
LAST NORWICH CITY U21s XI (vs Southampton)
Kean; Efete, Martin, Gafaiti, Uade; McGrandles, Odjidja; Hall-Johnson (c), King (Grant 79), Loza; Lafferty (Eaton-Collins 72). Subs not used: Killip (GK), Cantwell, Middleton.