Young sustained an ugly deep gash which required urgent medical attention when he attempted to save Xisco's header for Muang Thong's opening goal in the AFC Champions League (ACL) clash.

Friday night's penalty shootout hero dived to his right but struck an exposed metal rung on the post, which cut open his elbow/forearm.

Blood immediately streamed from a deep gash in Young's arm and he was substituted needing urgent stitches and medical treatment.

The problem is a major worry for Brisbane who lost number one goalkeeper Michael Theo for the remainder of the season to injury in Friday's dramatic win over Western Sydney.

Brisbane faces Melbourne Victory at AAMI Park in an A-League semi-final on Sunday.

Jamie Young grimaces in pain after sustaining the injury

Youth goalkeeper Tomislav Bilic, 19, replaced Young after 38 minutes and played out the remainder of the ACL clash.

Bilic will likely get the nod if Young isn't declared fit to face Victory.

The metal rung which Young collided with causing the injury

The circumstances behind the incident were condemned by Fox Sports commentator Andy Harper.

"How does this get through?" Harper said during the coverage.

It was also widely criticised on social media, including from Roar managing director Mark Kingsman.