ADELAIDE has signed utility Andy Otten and midfielder Cam Ellis-Yolmen to one-year extensions for next season.

Otten, 29, played eight games for the Crows this year and provides depth as a key defender or as a tall target in attack.

He has played 106 games for the Crows since being drafted with the 27th pick of the 2007 NAB AFL Draft.

Ellis-Yolmen, 25, missed all of 2017 recovering from a knee reconstruction, but returned to play 15 games this year.

He will remain on the Crows' rookie list and has played a total of 29 games in seven seasons.

"Andy and Cam are valuable contributors on and off the field and over the years have overcome adversity with injury, which is a testament to their character and resilience," Crows general manager of list management and strategy Justin Reid said.

"We see them both playing a meaningful role going forward."

Experienced defender Kyle Cheney remains unsigned for next season, as does second-year midfielder Matthew Signorello and rookie-listed ruckman Paul Hunter.

The Crows have confirmed six list changes – forward Mitch McGovern has been traded to Carlton, Curtly Hampton and Sam Gibson have retired, and Harry Dear and rookie-listed duo Jackson Edwards and Ben Jarman have been delisted.

Sturt forward Shane McAdam has also joined the Crows as part of the McGovern deal with the Blues.