Greater Western Sydney believe key defender Phil Davis will miss just one game with concussion issues.
The co-captain has been ruled out of Saturday's meeting with North Melbourne in Hobart after being knocked out in the third quarter of last weekend's defeat to West Coast.
The 27-year-old was collected by Jack Darling's elbow in a marking contest.
His place in the side will go to Tim Mohr, who will play his first game since round ten last year. Mohr is in his seventh year in the AFL but has so far only managed 46 games.
He's feeling better, but it was a really big hit as everyone would have seen.Leon Cameron
GWS coach Leon Cameron is disappointed not to have Davis available, but expects him to be back for the clash with Essendon at Spotless Stadium in round ten.
"He's feeling better, but it was a really big hit as everyone would have seen," said Cameron. "He had some headaches on Sunday and Monday, (and they were) minor yesterday.
"But with the concussion protocol, obviously if you get to Wednesday and you still have some symptoms that rules you out."
The Giants will also have Matt de Boer missing against the Kangaroos after he was forced off in the first half against West Coast with a hamstring problem.
Brett Deledio is already out with a hamstring injury, while the club's extensive injury list also includes the likes of Josh Kelly (groin), Toby Greene (foot), Tom Scully (ankle) and Zac Williams (Achilles).
Kelly could return to action next week, according to Cameron, while Deledio - hurt against Brisbane in round six - is expected to play before the end of the month.
GWS are 37/20 to beat North Melbourne, who are 9/20. The Giants are 93/100 with a 6.5-points start.
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