Sydney have dropped premiership winners Luke Ablett and Nic Fosdike for Saturday's crunch AFL clash with Collingwood at Telstra Dome.
As coach Paul Roos suggested earlier this week, youngsters Pat Veszpremi and Kieren Jack were recalled, along with veteran forward Leo Barry.
Ablett had missed only one other game this season while Fosdike played his first game of the season last week.
Roos was adamant Barry would play, provided he didn't suffer any after-effects from today's training session.
The Swans start Saturday's game in sixth position, one place and two points above the Magpies.
Roos said it was a huge game for the Swans against a team which had won their past five encounters.
"It's a massive challenge, we haven't beaten them for a fair while," Roos said.
"We're going to try and pick a team that is confident and is young and that can run and give us a chance to win.
"We are bringing a couple of young blokes back to give them a really good experience against a really good team.
"Collingwood have got a few young guys in as well, so I think it will be a snapshot of the future.
"It will probably give you a bit of a feel for both teams and their younger players and how both teams are going to look three or four years from now."
Sydney's normally niggardly defence has conceded over 100 points in their last three games, though Roos didn't attribute the problem solely to Barry's absence.
"The way the game has opened up a bit with the rules and things like that, I think every team is probably having a lot more trouble this year defending than in previous seasons," Roos said.
"But certainly Leo brings a lot of confidence back. He is a very good player.
Roos suggested Sydney would try and mix things up a bit to break their drought against Collingwood, though he admitted it was unlikely to be anything radical.
"It would be silly to do the same thing over and over again and get the same result, we have to do things differently, which we will," Roos said.
Although conceding Sydney had an ageing list, Roos revealed the Swans were unlikely to make major roster changes at the end of the season.
"This is a lot different market to Melbourne, we've got pressure on us to be competitive every single year and we understand that," Roos said.
"We will make some changes at the end of the season but they won't be as dramatic as what probably people think they should be.
"We don't have the luxury, for want of a better term, of going down the bottom of the ladder for a couple of years and restocking.
