Bock has played in the Crows' past eight matches but has been named as an emergency for Sunday, along with utility Kris Massie and forward Scott Stevens.
Meanwhile, the Bulldogs have recalled defender Matthew Boyd, leaving Brad Murphy, Sam Power and Wayde Skipper as the three emergencies.
Boyd's inclusion means the Bulldogs have made three changes to the team that lost to Fremantle at Subiaco last week, with midfielder Jordan McMahon and veteran Rohan Smith named on Thursday night at the expense of the injured Cameron Faulkner and youngster Cameron Wight.
ADELAIDE v WESTERN BULLDOGS
Sunday, 12:40pm ACST, AAMI Stadium
ADELAIDE
B: Bassett, Rutten, Hart
HB: Doughty, Hentschel, van Berlo
C: Mattner, Ricciuto, Burton
HF: Knights, Perrie, Goodwin
F: McLeod, McGregor, Biglands
FOLL: Hudson, Thompson, Edwards
I/C: Shirley, Torney, Welsh, Reilly
IN: Welsh
OUT: Bock
WESTERN BULLDOGS
B: McMahon, Harris, Griffen
HB: Morris, Hargrave, R.Murphy
C: Gilbee, West, Ray
HF: Smith, Bowden, Eagleton
F: Hahn, Johnson, Robbins
FOLL: Street, Cross, Cooney
I/C: Bandy, Birss, Boyd, Minson
IN: Boyd, McMahon, Smith
OUT: Faulkner (collarbone), Wight, B.Murphy
