"He was training on Friday, we thought he would be travelling but unfortunately he wasn't.
"We need to get back to Brisbane and see what the situation is."
Despite their lengthy winless streak, the Roar are still in touch with the top six and now sit four points shy of sixth-placed Western Sydney Wanderers with two matches in hand on many of their rivals.
"I say every week the performances are there ... we just have to keep believing in the process in what we are doing and how we keep trying to play and develop.
"I think the performances have been there (in past weeks), it is a case of taking our chances.