Fremantle coach Ross Lyon is optimistic Michael Walters and Nathan Wilson will return for Saturday night's AFL clash with Sydney at the SCG.
But midfielder Stephen Hill has been ruled out for a second straight week with a quad injury.
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.