The former number one draft pick has been looking for a place to resurrect his career after he sat out 2020 due to his history with concussions.
Sydney Swans CEO Tom Harley confirmed the club would look into bringing the key forward through the door.
“He spent some time in Sydney probably six weeks ago now,” Harley said on SEN Breakfast.
“We certainly had a discussion with Paddy. A bit goes to the list spots (not being finalised).
“Obviously Tom, his brother, plays up here so we’ve been monitoring Paddy but nothing further to update at this point in time.
“Potentially, without committing to anything. Once we know that and once we know the players that we’ve got out of contract and what we might be doing with them in terms of filling that. There’s also rookie list opportunities as well.
“Certainly nothing set in stone or concrete. We have had that discussion and that added layer of having Tom on our list and a really important part of our future going forward.”
McCartin was delisted by the Saints last year after playing 35 AFL games for the club.