PORT Adelaide co-captain Ollie Wines is in doubt for Saturday's crucial clash with Richmond at the MCG, while Brad Ebert could also join Ryan Burton on the injured list.
Scans have revealed Wines fractured his left thumb in the Power's 48-point loss to Brisbane at Adelaide Oval on Sunday.
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Wines was able to play out the game and will be assessed during the week.
Ebert injured his left knee and had it strapped, with the Power likely to have more information on Tuesday when they receive the results of scans.
Burton is expected to miss at least a month after injuring his right hamstring while chasing Lions forward Charlie Cameron in the third quarter.
Defender Dan Houston is expected to return to face the Tigers after he missed the loss to the Lions through illness.