Sydney's everywhere man Adam Goodes has volunteered to step into the breach and help fill the Swans' ruck crisis in Saturday's AFL match against the Western Bulldogs.

Not that coach Paul Roos is too enamoured with the concept.

The Swans have lost their two first-choice ruckmen in successive weeks, with Mark Seaby out for three months with an ankle injury and Shane Mumford suspended for two matches for a dangerous tackle on Geelong's Gary Ablett last week.

The main rucking duties against burly Bulldogs big man Ben Hudson will now fall to back-ups Mike Pyke and Jesse White for the clash in Canberra.

"If I can play a role in that position on the weekend I'll definitely put my hand up for it," Goodes said on Thursday.

He said many players could be called on to play different roles in the wake of the Swans' injury woes.

"I'm open to playing any role for the team when it's required of me.

"We've got a lot of blokes going through the midfield, so that might mean I'll bunker down on the forward line, but it always depends on what happens," Goodes said.

But Roos baulked at the suggestion that Goodes would take any of the centre bounces.

While Goodes won the first of his two Brownlow Medals in 2003 playing predominantly as a ruckman, Roos removed him from the physically-demanding position in 2005 after suffering a knee injury.

"The reason we took Adam out of the ruck is because of injury prevention," said Roos.

"When you have a ruckman that's not a natural ruckman in the sense of size ... it is a risk of injury.

"You definitely wouldn't see him at the centre bounces. He can ruck around the ground which is a potential ... but in terms of centre bounces in a genuine ruck contest, you won't see him in there."

Roos was confident that Canadian import Pyke, with just nine AFL games under his belt, and ruck-forward White would be competitive enough to help out the Swans' midfield.

Midfielder Jarred Moore will miss the match at Manuka Oval with an ankle injury, while Ed Barlow was dropped.

Into the side come tall duo Henry Playfair and Lewis Roberts-Thomson and exciting youngster Dan Hannebery.

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