Cam Ellis-Yolmen will be sidelined for 2017 after scans revealed a ruptured Anterior Cruciate Ligament (ACL) in his right knee.
The 24-year-old injured his knee during the first half of Adelaide's game against Richmond on Friday night.
Scans on Monday revealed the extent of the injury.
Ellis-Yolmen has played 14 AFL games since being recruited by the Crows with pick No. 64 in the 2011 National Draft.