Adelaide key defender Josh Worrell will be sidelined for at least two months following successful surgery on his fractured forearm on Monday.

Worrell's arm was caught in a tackle during Sunday's draw against Brisbane in the third term and didn't play out the remainder of the game.

The 23-year-old has been in stellar form and will begin rehabilitation next week after.

Adelaide's high-performance manager Darren Burgess was "disappointed" with the outcome given how well Worrell was playing.

โ€œWe're all very disappointed for Josh because he was playing some fantastic footy,โ€ย  Burgess said.

โ€œUnfortunately the nature of the injury has required surgery and that will mean he will be sidelined for the next two to three months while allowing it to fully recover.

โ€œJosh has worked really hard to become a regular and important part of the team and I expect him to carry the same attitude into his rehab and we look forward to him returning.โ€

Coach Matthew Nicks shared a similar feeling post-game after admitting the left-footer "had taken his game to another level".

"More so disappointment for a guy who taken his game to another level," Nicks said.

"And he's gone there because he's worked so hard and he's a professional.

"And for Joshy, it's taken a little bit of time to get there so as a coach, you're over the moon about what he's been able to do with his game and he's going to be something exciting and important for our footy club.

"That moment I can see the replay and I feel for him that now he has to go through some rehabilitation.

"You feel for the individual."

Worrell has been a big improver for the Crows, averaging 17.7 disposals, 5.8 marks, 6 spoils and an impressive 22.7% contested defensive loss rate.

Adelaide will turn their attention to Collingwood at the MCG on Saturday as they continue to resurrect their season.