West Coast's forward line has taken another massive hit after Mark LeCras was forced to undergo wrist surgery, ruling him out of Saturday's clash with Adelaide. 

LeCras injured his right wrist in last week's loss to Essendon, and underwent an arthroscopy earlier this week.

It was the same wrist he has injured previously, and coach Adam Simpson says the club is waiting on the results of more scans before determining how long LeCras will be sidelined.

West Coast forward Jack Darling (ankle) is still at least three weeks away from resuming, while fellow spearhead Josh Kennedy (leg) will miss two to three more weeks.

Kennedy (29 goals), Darling (28) and LeCras (22) are West Coast's leading goalkickers this year.

The Eagles (10-3) have slipped to third spot following consecutive losses.

Their top-four hopes will go on the line during the next few weeks when they take on Adelaide on Saturday afternoon (away), Greater Western Sydney (home) and Collingwood (away).

Simpson swung All Australian defender Jeremy McGovern into attack during the final quarter against Essendon last week.

But with defender Tom Barrass (back) still injured, Simpson might be reluctant to leave McGovern in attack for a whole game.

Former Cat Nathan Vardy and ex-Port midfielder Brendon Ah Chee are options for Simpson to bring into the side to add extra marking power in attack.

Adelaide is set to receive long-overdue good news on the injury front, with Rory Sloane, Tom Lynch, Rory Laird and Luke Brown a chance to return.