Hawthorn have been dealt a double injury blow with star forward Lance Franklin and captain Luke Hodge both expected to miss up to three weeks each.
Franklin has been ruled out with bleeding in his hamstring, while Hodge has suffered a setback in his long recovery from a knee injury meaning both will almost certainly miss crunch matches against Collingwood (Round 17) and Essendon (Round 18) as well as this week's clash with the Bulldogs.
The reigning Coleman medallist was in doubt to face Greater Western Sydney on Sunday with tightness in the same hamstring, but was declared fit to play by Hawks medical staff.
Franklin booted four goals, including his 500th career major, before being subbed out of the game during the third quarter.
"Scans today have showed he has a bit of bleeding in the hamstring and we expect he'll miss up to three weeks," Hawks football operations manager Mark Evans said.
"Lance said he was feeling fine in the first half and playing without restriction or awareness.
"After a marking contest in the third quarter, he came to the bench reporting a corked buttock and some tightness in his left hamstring."
Hodge, who has played just two matches this season and been absent since Round 6, reported swelling in his knee after training on Monday.
He was expected to resume playing this week, but now faces a further stint on the sidelines.
"Luke has had some fluid drained from his knee and we would expect it to settle quickly," Evans said.
"We anticipate Luke will be able to train at the end of this week, and depending on how quickly the swelling settles, we expect him to resume playing within the next 2-3 weeks."