Adelaide's injury crisis has worsened with captain Taylor Walker ruled out of action in coming weeks.
Walker will miss Friday night's fixture against the Western Bulldogs and also following matches because of back and glute muscle problems.
Taylor Walker will miss further games with injury.
Photo: AAP
The Crows could also be without All-Australian midfielder Matt Crouch and defender Luke Brown on Friday night as they battle to recover from soreness from last week's game.
Meanwhile, Fremantle coach Ross Lyon is optimistic Michael Walters and Nathan Wilson will return for Saturday night's clash with Sydney at the SCG.
But midfielder Stephen Hill has been ruled out for a second straight week with a quad injury.
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Walters has missed two games with a kneecap injury, while Wilson missed last week's 30-point win over St Kilda with a back complaint.
"Walters and Wilson, [we are] really optimistic on," Lyon said.
"If they get through training, which we think they will, they'll play.
"[Hill] hasn't progressed as quickly as we'd like. It's just a fascial injury, but that high-end range of speed and movement he's just been restricted on.
"We're optimistic and remain optimistic for next week."
Sydney have ruled out star forward Lance Franklin for a fourth straight game because of a bruised heel.
AAP
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