Adelaide forward Tom Lynch is set for an extended stint on the sidelines after undergoing arthroscopic surgery on his left big toe.

Lynch has had an issue with the toe since aggravating it in Round 3 and has been playing with the use of pain killers and lower training loads to help try and reduce the pain.

But there wasn't any signs of improvement and the option for surgery was the best outcome, that will likely see him miss at least the next two months of action.

Crows Head of Football Adam Kelly said the club hoped the option of pain killers and lower training loads would work, but that wasn't the case.

“In the beginning we weighed up our options and the path we chose has not worked,” Kelly told afc.com.au.

“Tom had been able to carry the injury up until and during the Round Six game when he was the substitute and had 20 minutes of game time.

“He then sat out last week’s match against GWS and we had hoped those couple of weeks with a lighter load would assist in his recovery.

“That has not eventuated and while it is disappointing to lose a player of Tom’s quality and leadership, we are confident he will recover in time to play a role for the team in the latter stages of the season.”

In the six games Lynch has played in 2021, he has averaged 13.5 disposals and 4.7 marks a game and has managed just the 2 goals for the season.