A guernsey (also called a jumper) is a type of shirt worn by Australian rules footballers. It is typically sleeveless, although long sleeves may also be worn.[1][2]
The typical guernsey features the player's number on the back, the colours of the player's team, and the team logo. Sponsor logos may also appear on the guernsey. Unlike sports such as soccer and American football, the surnames of Australian rules footballers do not appear on their shirts (with the exception of International Rules football, which is a hybrid code). Australian rules football is unique in referring to the player's shirt as a "guernsey", with most other sports referring to their respective uniforms as a "jersey".[3][4] As an extension of this tradition, the expression "to get a guernsey"[5] is a metaphor for being selected for something or gaining recognition for an achievement.