In the sport of Australian rules football

Australian rules football

Australian rules football, officially known as Australian football, also called football, Aussie rules or footy is a sport played between two teams of 22 players on either...

, a "key position" refers to positions on the ground that are considered vital to the structure of a team.

Key position players make up what is known as the "spine" of a team. Key positions on an Australian rules field are usually deemed to be centre half-forward

Centre half-forward

In Australian rules football, the centre half-forward is a position on the half-forward line of a football field. The directly opposing player is a Centre-Half-Back....

, full-forward

Full-forward

Full-forward is a position in Australian rules football and Gaelic football with a key focus on kicking goals.Leading full-forwards of the Australian Football League are usually among those awarded with the Coleman Medal for the most goals in an AFL season....

, centre half-back

Centre half-back

In Australian rules football, the centre half-back refers to a position in the half-back line of a football field.Centre half back is considered a key position in defence. Examples of centre half-backs include Glen Jakovich, Darren Mead, Tom Harley and Chris Tarrant....

 and full-back.

Key position players are usually tall and strongly built. Some KPP's include Fraser Gehrig

Fraser Gehrig

Fraser Gehrig is a retired Australian rules footballer in the Australian Football League who played for the St Kilda Football Club and the West Coast Eagles...

, Matthew Scarlett

Matthew Scarlett

Matthew Scarlett is an Australian rules footballer for the Geelong Football Club in the Australian Football League . A fullback, tall and weighing , Scarlett is the eldest son of former Geelong footballer John Scarlett....

, Barry Hall

Barry Hall

Barry Hall is a former Australian rules footballer. Hall is considered to be one of the best forwards of the modern era, being named All-Australian, leading his club's goalkicking on nine occasions and captaining the Sydney Swans to their 2005 AFL Grand Final victory...

 and Warren Tredrea

Warren Tredrea

Warren Gary Tredrea is retired Australian rules footballer with the Port Adelaide Football Club in the Australian Football League . A forward, tall and weighing , Tredrea is the son of former Collingwood and Port Adelaide player Gary Tredrea.Tredrea was zone selected for the inaugural Port...

.