While the grunt work is typically done by the midfield of an AFL side, the heavy lifting can often be done by the backline, especially for teams at the lower end of the ladder.

Premiership defences require potent key defenders, intercepters and running ball-users to provide an offensive threat.

Geelong were an unstoppable force out of defence last season, with De Koning and Stewart constantly preventing chaos and allowing ThuoyThou, Guthrie and others to control the ball effectively.

Melbourne were unbeatable at their best in 2021 with Lever, May, Petty and even Gawn maintaining control of the game with their aerial presence while Salem, Brayshaw and Rivers inflicted damage by foot.

This list will help you decide which team will be the immovable object in 2023 and here we look at the backlines ranked 12-7.

SEEL: Every AFL team's backline ranked PART I

2. (11th) Greater Western Sydney

On paper, the Giants' defensive list is up there with the elite backlines of the competition, stacked with reputation, potential, and star power.

At the forefront of that star power is full-back Sam Taylor, fresh off receiving a maiden All-Australian blazer and looking every bit as good as last year during his preseason.

By his side is Nick Haynes who has proven to be an All-Australian calibre defender himself, and Connor Idun who could be set for a breakout 2023 season given his development.

Phil Davis and Lachlan Keeffe are the experienced veterans who are hopefully not required but add to their key defensive depth nonetheless.

At ground level, Lachie Whitfield, Lachie Ash and Isaac Cumming are all established or potential stars who are expected to perform this season in a rejuvenated side led by Adam Kingsley.

Several young players will be looking to break into the senior side or show positive development for the future. Leek Aleer has shown his ability in the pre-season while, Josh Fahey firms as a potential debutant.

Harry Himmelberg displayed his versatility last season and could also add to the Giants' defensive depth if required.