Sydney will wait nervously to see the result of Tom Papley's likely ankle scan after the gun forward was carried from the field before limping down to the rooms.
Papley's right ankle was caught underneath a marking contest against Brisbane's Brandon Starcevich and assistance rushed to him.
During Fox Footy's commentary, Anthony Hudson made it known that the Swans livewire was struggling.
“That does look worrying now for Papley, doesn't it,” Hudson said.
“He can't put any weight on it. He is in serious pain.”
The injury news was compounded by Dane Rampe being pulled from the ground with a calf issue, replaced by substitute Corey Warner.
Forward Will Hayward is also a watch for the Swans.
It comes as midfield trio James Rowbottom (cheek), Callum Mills (sore) and Justin McInerney (knee) were all absent for the trip to the Gabba.
More to come.