GOLD Coast is facing up to its nightmare scenario, with Gary Ablett out indefinitely with a shoulder injury.

Each club has its star players, but which one could your team least afford to lose?

Adelaide: Daniel Talia - The futures of out-of-contract midfielders Patrick Dangerfield and Rory Sloane have captured the headlines, but Talia is the rock on which the Crows' defence is based following the retirement of Ben Rutten.

Brisbane Lions: Tom Rockliff - The Lions gave Collingwood a scare with their inspirational skipper in the side in round one and surrendered meekly against North Melbourne the next week when he missed with fractured ribs.

Carlton: Chris Judd - The fact that the 31-year-old dual-Brownlow medallist still has to carry so much of the midfield burden for the Blues at his age is an indictment on his teammates.

Collingwood: Scott Pendlebury - With Dayne Beams gone and Dane Swan into his twilight years, the Magpies rely on their skipper around the stoppages more than ever.

Essendon: Jobe Watson - The Brownlow medallist has obvious on-field attributes, but arguably even more important is the way he has held the Bombers together during the supplements crisis.

Fremantle: Nat Fyfe - The Dockers are fast becoming Fyfe's team, if they aren't already, with the gifted midfielder's influence felt across all areas of the ground.

Geelong: Tom Hawkins - The Cats clearly recognised the lack of tall options around Hawkins with the recruitment of Mitch Clark and Rhys Stanley, but securing the long-term future of the free agent by year's end remains a top priority.

Gold Coast: Gary Ablett - Former coach Guy McKenna lost his job in no small part due to Ablett's shoulder injury. The Suns lost six of their final seven games in 2014 without Ablett and now Rodney Eade must find a way to cover the absence of the star onballer.

Greater Western Sydney: Shane Mumford - The former Swans ruckman has brought a steely presence to the Giants' onball brigade that is allowing their talented youngsters to flourish.

Hawthorn: Jarryd Roughead - The Hawks handled the transition to life without Lance Franklin brilliantly, with Roughead now the centrepiece of an attack that has claimed back-to-back flags.

Melbourne: Nathan Jones - Jones has been a beacon of strength and leadership through a barren period for the Demons, with the midfielder voted the club's best-and-fairest player for the past three years running.

North Melbourne: Todd Goldstein - He's shouldered the ruck burden pretty much singlehandedly for the past four years, and has done a fine job, which is just as well because there's not much ruck depth behind him at Arden Street.

Port Adelaide: Robbie Gray - The talented forward-midfielder finished 19th in last year's Brownlow Medal count, but those in the know - the AFL coaches - voted him their player of the year.

Richmond: Alex Rance - The Tigers struggled early last season when the tall defender was out injured and he was a key factor in their barnstorming run to the finals. Now they must find a way of re-signing the in-demand free agent.

St Kilda: Jack Steven - The Saints recognised the importance of Steven when they signed him to a new five-season deal this year.

Sydney Swans: Lance Franklin - Buddy's brilliance in front of goal is well-documented, but the Swans love his appetite for the contest and willingness to chase and tackle almost as much.

West Coast: Eric Mackenzie - The doomsday scenario has already played out for the Eagles, with MacKenzie gone for the year with a knee injury. Another key defender Mitch Brown also won't play again in 2015. All this after the retirements of stalwart backmen Darren Glass and Beau Waters.

Western Bulldogs: Marcus Bontempelli - 'The Bont' isn't the best player at the Dogs - yet - but he represents the light at the end of the tunnel for Bulldogs fans impatient for a return to the finals.