The Swans have made a late change ahead of their clash with Brisbane at the SCG this afternoon.
Young defender Aliir Aliir has been withdrawn from the side after missing a training session yesterday.
He has been replaced by Harrison Marsh.
"It is disappointing and unfortunate that Aliir comes out of the side and Harry Marsh comes in," Sydney's Head of Football Tom Harley said.
"We had a training session yesterday and it is disappointing that Aliir didn't attend and we can't stand for that as a football club so he has taken full responsibility for that."
"We move on with the game and Harry Marsh comes in as his replacement."
Brisbane will go into the game as selected.
