ADELAIDE, AUSTRALIA - MAY 05: Levi Casboult of the Blues during the round seven AFL match between the Adelaide Crows and the Carlton Blues at Adelaide Oval on May 5, 2018 in Adelaide, Australia. (Photo by Mark Brake/Getty Images)

Former Carlton forward Levi Casboult remains unvaccinated ahead of next week's Rookie Draft, where the Suns are primed to hand the veteran a career lifeline.

Gold Coast emerged as suitors for the 31-year-old last month following his departure from Carlton after not being offered a new deal for the 2022 season.

That move could now be under some doubt, with The Age's Sam McClure reporting Casboult remains unvaccinated as he awaits the arrival of the Novavax vaccine from the United States.

PERTH, WESTERN AUSTRALIA - AUGUST 12: Levi Casboult of the Blues looks on after the teams defeat during the round 21 AFL match between the West Coast Eagles and the Carlton Blues at Domain Stadium on August 12, 2017 in Perth, Australia. (Photo by Will Russell/AFL Media/Getty Images)

Casboult will need to be fully vaccinated in order to play next season, however Queensland players aren't required to have their first dose until January 21.

Novavax however isn't TGA approved in Australia, meaning Casboult's wait faces an unclear timeline ahead of the upcoming season.

7 News' Mitch Cleary reports that Casboult has previously suggested he would be open to receiving the Pfizer or AstraZeneca vaccinations, which are currently available in Australia.

The Suns' hopes of signing Casboult come amid their stunning call to delist Hugh Greenwood ahead of next Wednesday's National Draft, with the midfielder having backflipped on the planned strategy to join North Melbourne on a two-year deal.

Greenwood's departure opens up another list spot for the Suns to fill for 2022, with Casboult now perhaps more of a necessity than ever before.

Suns football boss Wayne Campbell opted not to speak on Casboult's vaccination stance, but confirmed contract discussions have begun.

"Have we spoken to Levi about potentially coming to the Gold Coast? Yeah we have. Over a period that will play out, whether it plays out or doesn‘t. (But) an individual player’s vaccination status, I don’t think it’s for me to go into," Campbell told 3AW.

AFL Rd 4 - Essendon v Carlton
MELBOURNE, AUSTRALIA - JUNE 27: Levi Casboult of the Blues runs with the ball during the round 4 AFL match between the Essendon Bombers and the Carlton Blues at Melbourne Cricket Ground on June 27, 2020 in Melbourne, Australia. (Photo by Daniel Pockett/Getty Images)

“Levi Casboult is not a Gold Coast player at this stage … and I don’t think I should be discussing what his vaccination status is.”

Casboult played 154 games in the navy blue since making his debut in 2012, booting 156 goals during his tenure at Princes Park.

The 2021 Rookie Draft is set to take place next Friday on November 26.