Either Seb Ryall or Zac Anderson will start in the heart of Sydney FC's defence against Perth Glory in the absence of Jacques Faty, who is on leave in France for personal reasons.
Regular right-back Ryall was dropped for Rhyan Grant in the Sky Blues' 4-2 loss to Melbourne Victory last weekend.
Coach Graham Arnold will decide after training on Thursday if he can reclaim a starting position in central defence at nib Stadium on Saturday, or whether he'll give Zac Anderson his A-League season debut.
"Jacques Faty is unavailable. I don't want to go into it. It's for personal reasons and he'll be back in the country on Saturday ready for the Wellington game," Arnold said.