PERTH, AUSTRALIA - JULY 02: Sebastian Ross of the Saints looks to pass the ball during the round 15 AFL match between the Fremantle Dockers and the St Kilda Saints at Domain Stadium on July 2, 2017 in Perth, Australia. (Photo by Paul Kane/Getty Images)

St Kilda midfielder Seb Ross is set to explore his options for the future, according to Fox Sports' Tom Morris.

The 28-year-old remains unsigned past this season, and is among a bevy of key names currently out-of-contract at Moorabbin this season.

Ross joins the likes of fellow onballers Jack Billings and Luke Dunstan in being yet to recommit past 2021, while Jack Lonie, Jake Carlisle, Jarryn Geary, Dean Kent Darragh Joyce and James Frawley are also among those off-contract.

MELBOURNE, AUSTRALIA - APRIL 09: Sebastian Ross of the Saints kicks the ball during the round three AFL match between the St Kilda Saints and the Collingwood Magpies at Melbourne Cricket Ground on April 9, 2016 in Melbourne, Australia. (Photo by Michael Dodge/Getty Images)

Morris believes that Ross will look to "test the market" this off-season as he weighs up his future in the league.

“Seb Ross I’m told is eager to test the market and see what’s out there. A two-time best and fairest and a free agent... he can do as he pleases," Morris said on AFL Tonight.

Dunstan and Billings have both been linked to interstate clubs in recent weeks, with Gold Coast and Port Adelaide tipped to be showing interest in the midfield duo respectively.

Billings is understood to have been tabled a new deal by the Saints for next season and beyond, however agreed terms are yet to be seen.

“Jack Billings is a free agent. The Saints are happy to keep him, but on their terms," Morris said.

LAUNCESTON, AUSTRALIA - APRIL 28: Jack Billings of the Saints kicks the ball during the 2018 AFL round six match between the Hawthorn Hawks and the St Kilda Saints at UTAS Stadium on April 28, 2018 in Launceston, Australia. (Photo by Michael Willson/AFL Media/Getty Images)

"They’re not going to pay more than what they think he deserves, he’s got a multi-year deal in front of him. Genuine chance to go if he wants opportunities elsewhere or a better deal elsewhere and the Saints can get a second-round pick back in return as compensation.

“Luke Dunstan has had a great revival in the second half of the year, there’ll be clubs that are interested in him, I think the Gold Coast Suns are absolutely going to be one of them at the end of the year.

“I think especially Dunstan and Ross are more likely to leave than Billings, but all three could absolutely leave at the end of the year.”\

Dunstan has had a rejuvenated campaign in the latter half of this season, recording 25 or more disposals on nine occasions since reclaiming his place in Brett Ratten's side in Round 11.

The 26-year-old could prompt several rival suitors to express their interest, with South Australian clubs also considered to potentially look to lure the midfielder back to his home state.

The Crows were reported to have made a move for the Woodville-West Torrens product, with a deal failing to transpire between St Kilda and Adelaide.