West Coast premiership defender Sam Butler is set to miss up to two months of AFL action after scans revealed a small fracture in his foot.

Butler damaged his foot against Geelong on Saturday but it was thought he would only miss a fortnight with the injury after initial scans showed no major damage.

However, a secondary scan discovered the fracture, with the 24-year-old now forced to wear a moon boot for the next month before he can resume training.

It continues an unlucky run for Butler, who missed six rounds earlier in the year with a fractured cheekbone.

Butler has played just 26 games since featuring in West Coast's 2006 premiership triumph, with a myriad of groin complaints his main obstacle in stringing together a meaningful sequence of games.

West Coast's injury list also features key players Daniel Kerr (hamstring), Darren Glass (groin), Chris Masten (knee) and Luke Shuey (virus), while Adam Selwood (shoulder) is still in doubt to tackle Richmond at the MCG on Sunday.

The Eagles sit in 14th place on the table with just three wins from 11 games.

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