Brisbane's miserable AFL season has continued with key defender Daniel McStay ruled out for the rest of the year due to a broken ankle.
McStay, 21, landed awkwardly in a marking contest with GWS star Jeremy Cameron in Sunday's 79-point loss at the Gabba, the 12th consecutive defeat for the embattled Lions.
"It's very disappointing for Dan," said Brisbane Lions football manager Matthew Francis.
"He's been a mainstay for us in defence this year and has shown great leadership as one of the younger guys down back. He'll be a big loss."
It leaves the Lions even shorter on tall options in defence, having lost Justin Clarke to a concussion-enforced retirement earlier in the season and with veteran Daniel Merrett battling injury and illness.
Meanwhile, both Stefan Martin and Lewis Taylor will be sent for scans with the Lions hopeful they have escaped major damage after suffering injuries.
Martin took a hit to his ribs when he collided with Giants goalsneak Steve Johnson in the first half but played out the match, while Taylor missed the game after sustaining an ankle injury at training on Thursday.
Taylor is considered likely to miss Sunday's wooden spoon decider against Essendon at Etihad Stadium.