Australian rules football, officially known as Australian football, also called football, footy, or Aussie rules (and in some regions marketed as AFL after the Australian Football League, the most popular and only fully professional Australian football league in the country), is a sport played between two teams of eighteen players on the field of either an Australian football ground, a modified cricket field, or a similarly sized sports venue. The main way to score points is by kicking the ball between the two tall goal posts. The team with the higher total score at the end of the match wins unless a draw is declared.