Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The Italian community of Australia has played an influential role in the history of Australiansoccer. Numerous clubs have been formed over the years in every state and territory, where present there are at least thirty active Italian football clubs competing in official senior competitions.
It is debated regarding which club is the most successful and has the largest following. Marconi Stallions FC leads in the most National Soccer League championships, being equal first in the league total. Adelaide City FC acquired the most NSL Cups, and is the only Italian club to have become a continental champion, winning the OFC Champions League in 1987. Overall, the Italian clubs produced a total of nine national championships, seven national cups, one continental cup, and various state championships and cups respectively.
The following list of clubs participated in the defunct National Soccer League, which was at its time the highest level of soccer in Australia. A total of seven clubs from four states participated, producing a total of nine championships, seven cups and one continental championship, during the league's existence.