No injuries were reported after their 74-point demolition of the Bulldogs last week and Crows' selectors are yet to drop anyone from that side.
Johncock has been out of the side since he fractured his leg against the Demons back in round seven and has been named on an extended interchange bench along with fellow inclusions Nathan Bock and Scott Stevens.
The Kangaroos are also yet to drop anyone, but have added three youngsters to the side that prevailed over the Hawks by 41 points last week.
David Trotter and Ben Schwarze are both a chance to make their AFL debuts after being named on the seven-player bench along with five-gamer Jesse Smith.
Trotter is a hard-at-it midfielder drafted at pick nine in the 2003 national draft, while Schwarze is a tall defender picked at number 68 overall last year.
KANGAROOS v ADELAIDE
Sunday, 2:10pm AEST, Telstra Dome
KANGAROOS
B: Makepeace, Watt, Colbert
HB: Firrito, Brown, Archer
C: Sinclair, Harris, B.Harvey
HF: Grant, Hale, Wells
F: Co Jones, Thompson, Rocca
FOLL: Petrie, Simpson, Rawlinga
I/C (from): Pratt, Sansbury, Schwarze, Trotter, Stevens, Smith, Harding
IN: Trotter, Schwarze, Smith
OUT:
NEW: David Trotter (Calder Cannons U/18s), Ben Schwarze (Port Melbourne)
ADELAIDE
B: Torney, Bassett, Hart
HB: Doughty, Rutten, Reilly
C: Mattner, Thompson, Burton
HF: Ricciuto, McGregor, Goodwin
F: Mcleod, Welsh, Perrie
FOLL: Biglands, Shirley, Edwards
I/C (from): Van Berlo, Hudson, Johncock, Knights, S.Stevens, Hentschel, Bock
IN: Johncock, S.Stevens, Bock
OUT:
