The Brisbane Lions are considered as one of the youngest lists in the game, ranked fifth youngest behind Gold Coast, Carlton, Richmond and North Melbourne. 

The average age of a Lions player is 23-years-old with only 9 players having reached the 100 game milestone so far.

As the team heads into 2018, there will be 11 Lions hopefuls waiting to make their debut.

Clubs ranked from oldest average age to youngest

 RANKING CLUBAVERAGE AGE (YEARS, DAYS)
1.ADELAdelaide24192
2.HAWHawthorn 24 179 
3.GEELGeelong24 95 
4.COLLCollingwood24 92 
5.PORTPort Adelaide 24 50 
6.SYDSydney23 343 
7.MELBMelbourne 23335 
8.FREFremantle 23 292 
9.WCEWest Coast23 282 
10.WBWestern Bulldogs 23 259 
11.GWSGreater Western Sydney 23 253 
12.STKSt Kilda 23 201 
13.ESSEssendon 23 179 
14.BLBrisbane Lions 23128 
15.NMFCNorth Melbourne 23 117 
16.RICHRichmond 23 93 
17.CARLCarlton 23 77 
18.GCFCGold Coast23 22 

Interestingly, reigning Premiers Richmond Tigers are the third youngest list ahead of the 2018 season.  

After entering 2017 having played 65 finals collectively – compared to Hawthorn's 313 and Sydney's 267 – last year's premiership run has given the Tigers 114 games of September experience.

Gold Coast is the least experienced team in finals, with captain Gary Ablett taking his 17 games of September experience with him to Geelong and dropping the Suns' total to 31.

St Kilda (32) and Melbourne (44) are also very green when it comes to playing finals and both will be expecting to add experience in 2018.

Only six clubs have fewer than 100 games finals experience, with Carlton (56), Essendon (63) and the Brisbane Lions (65) the others.

Three clubs will go into next season with five 200-game players – Geelong, Port Adelaide and Sydney – while St Kilda will have none after the retirements of Nick Riewoldt, Leigh Montagna and Sean Dempster.

West Coast has the most players on its list yet to debut with 16 after adding six players through the national draft and three new rookies. 

Summary of 2018 AFL club lists

 CLUBAVERAGE AGE (YEARS, DAYS)AVERAGE GAMESFINALS100+ GAMESYET TO DEBUTFROM OTHER AFL CLUBS
ADELAdelaide24192681651413 8
BLBrisbane Lions231285465 1111
CARLCarlton237756567817
COLLCollingwood2492701161312
ESSEssendon2317958639910
FREFremantle232926314413129
GEELGeelong24956520913 129
GCFCGold Coast 23226031799
GWSGreater Western Sydney2325364143101111
HAWHawthorn241797426517910
MELBMelbourne2333557448911
NMFCNorth Melbourne23117 5210710117
PORTPort Adelaide245073109171013
RICHRichmond23936211411 88
STKSt Kilda2320153321010 12 
SYDSydney 23343 6630311124
WCEWest Coast232826416915167
WBWestern Bulldogs2325956129976
AVERAGE2327862126111010