Jason Ashby is delisted by Essendon after four seasons at the club.
"Jason is a terrific young man, and an extremely popular member of the playing group," Essendon football manager Rob Kerr said.
"Competition for spots as a defender has been tough, but Jason's resilience and hard work over the journey saw him rewarded with several opportunities to perform at senior level.
"Jason will always be welcome at Essendon, and on behalf of everyone at the club we wish him all the very best for his future, both on and off the field."