Sydney coach Dean Cox has downplayed any concern surrounding the future of defender Tom McCartin following another concussion last week.
McCartin has a history of head knocks, missing 15 games in the past three seasons, and will miss Saturday's game against Port Adelaide.
"He's going well. He's been in the footy club all the way through the week. He's healthy, he's responded well, and he's just now working through some protocols," Cox said.
"We'll hopefully build towards some training next week and assess him from there.
"Obviously, he's had a few concussions, like most players, but he's vibrant since coming back into the football club. He's focused on trying to get back as quickly and as safely as he possibly can, and we'll give him that time."
The Swans will need to shift the magnets around to fill the void left by McCartin, as well as in-form midfielder Justin McInerney, who has been ruled out for a minimum eight weeks with a hamstring injury.
First-choice defenders Lewis Melican and Dane Rampe aren't ready to return from injury, which may put recruit and last week's matchwinner Jai Serong on deck to help out.
Joel Hamling looms as a like-for-like replacement for McCartin, while Harry Cunningham could slot into McInerney's role after a 37-possession performance in the VFL.
"With the next person that comes in," he said.
"That's something we've spoken about as a footy club for a long period of time — the ability to be able to replace injured players or fill any role that we're after. That's something that we always want to make sure we're known for.
"We spend a lot of time with our VFL team and everyone on our list about the way we want to play. They certainly understand now what Port Adelaide is going to throw at us, but we also need them to understand that they are in the team to perform that role well."
