Sydney's match committee have some pleasant dilemmas to sift through this week, as the in-form Swans strive to finally record a win over one of the AFL's heavyweight teams.

A hard-fought 10-point home win over Richmond on Sunday lifted the Swans 12 points clear of ninth-placed Melbourne at the halfway stage of the season.

Sydney's three losses have all been at home to teams above them - Geelong, Carlton and Hawthorn - while they are unbeaten in five away games this season.

The Swans face third-placed Carlton at Etihad Stadium next Sunday in what looms as a classic mid-season examination of top-four credentials, while Collingwood await them in the following round.

With best and fairest Kieren Jack adding impact as a substitute against Richmond in his comeback from an ankle injury, and ruckman Shane Mumford due to return from a knee injury, coach John Longmire was bullish about Sydney's prospects.

"We've won five out of six now and we're in a situation now where we take on Carlton - hopefully with Kieren coming back today and fingers crossed Shane next week - it does give us a bit of momentum going into a really tough game," Longmire said.

With ruckman Mark Seaby producing probably his best game in Sydney colours against Richmond and Mumford back, the Swans could throw both big men at the Blues.

"He is going to give us something to think about, Seabs," Longmire said.

"There's no doubt. Mumford should be right for next week, so we expect to play Mummy.

"Seabs, the way he played today, I thought it was as good as he's played for us."

Sydney also have to squeeze in the versatile Lewis Roberts-Thomson, who has been in the ruck and plays full forward in addition to his customary key defensive role.

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