Swans co-captain Dane Rampe is likely to miss the rest of the season after it's been revealed he's been playing with a broken hand.

The Swans confirmed via a statement on the club website that the star defender will have further surgery and is unlikely to return in 2020.

"Rampe suffered a fracture to his hand in Sydneyโ€™s Round 8 match against Hawthorn and had a metal plate inserted to repair the break. He returned to play in Round 9 against St Kilda," the statement read.

"After experiencing pain and swelling in his hand this week Rampe had precautionary scans, which have revealed his hand has rebroken and the previous repair has dislodged.

"Rampe will be required to undergo further surgery.

"Itโ€™s unlikely he will return to play this season."

Rampe has enjoyed another great season as one of the game's most reliable defenders.

He has averaged 14.6 disposals and 5.5 rebounds 50s from 11 games while consistently shutting down his opponent.

The Swans will look to back up their impressive win over GWS when they face Fremantle at Optus Stadium on Saturday night at 8.10pm AEST.