What Italian professional football club, founded in 1899, was the first to establish an ultras group?
Fossa dei Leoni The Fossa dei Leoni, also referred to by the acronym FdL, was an association of ultras supporters of Italian professional football club Associazione Calcio Milan. Established in 1968, it was the first ultras group to form in Italy.
Italian Footballers' Association The Italian Footballers' Association (Italian: "Associazione Italiana Calciatori"), also referred to by the acronym AIC, is the association for footballers in Italy. It was established in 1968 and currently has 4,500 members, of which 2,500 are professionals.