Every team has a player that they can least afford to lose - not necessarily their best player but the most integral for structure or game style.
Four-time premiership Hawk Jordan Lewis has gone over every club and picked out the player he believes are most valuable to their club.
Lewis told SEN he had tried to avoid going for super obvious players, so there may be a few surprises in the list.
For example, Lewis believes Matthew Kreuzer is that player for Carlton as opposed to Patrick Cripps.
“When he (Kreuzer) is in the side, they are a much better midfield and Cripps would enjoy having him in the side."
Lewis believes that Steven May is the player most crucial to Melbourne's resurgence in 2020, which is perhaps a nerve racking for Dees fans considering the defender's injury issues since arriving at Melbourne.
“It allows Jake Lever and other players to play their role. If May is out of the side, then Lever might have to go to a lock down which is not his natural position."
Not all choices were too left-field though, with Lewis deeming Patrick Dangerfield as Geelong's player of most importance, while the loss of Alex Rance has seen Dylan Grimes become the premiers' most important asset.
Lewis' player each club they can least afford to lose
Adelaide: Brodie Smith
Brisbane: Harris Andrews
Carlton: Matthew Kreuzer
Collingwood: Darcy Moore
Essendon: Devon Smith
Fremantle: Michael Walters
Geelong: Patrick Dangerfield
Gold Coast: Lachie Weller
GWS: Jeremy Cameron
Hawthorn: Jack Gunston
Melbourne: Steven May
North Melbourne: Ben Brown
Port Adelaide: Charlie Dixon
Richmond: Dylan Grimes
St Kilda: Tim Membrey
Sydney: Lance Franklin
West Coast: Jeremy McGovern
Western Bulldogs: Jason Johannisen
