As a result, Douglas, 31, will play his 14th season next year in Crows colours in a decision he described as straightforward.
“I’ve always said being a one-club player is something that would be pretty special to me,” Douglas told the club’s website.
“We’ve got a highly determined playing and coaching group who are driven towards achieving the ultimate success.
“I still feel I’ve got some good footy ahead of me and to be able to continue playing at the club I’ve called home for more than a decade is great.”
The decision is some welcome news for Adelaide, which faces a crunch game against Hawthorn on the weekend.
Adelaide remain unsure whether injured pair Rory Laird and Tom Lynch will be available for the must-win match.
The Crows are waiting to see how Laird (hand) and Lynch (side strain) train on Thursday before deciding whether to recall them for Saturday night’s match at the MCG.
Adelaide’s injury plague has claimed another victim, with defender Luke Brown (ankle) ruled out as they try to arrest a three-game losing streak.
By contrast, the Hawks could take an unchanged side into this weekend.
– with AAP
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