Associazione Calcio Milan (Italian pronunciation: [assotʃatˈtsjoːne ˈkaltʃo ˈmiːlan]), commonly referred to as Milan or AC Milan (Italian pronunciation: [a tˌtʃi mˈmiːlan]) mainly outside of Italy,[6] is an Italian professional football club based in Milan, Lombardy. Founded in 1899, the club competes in the Serie A, the top tier of Italian football. In its early history, Milan played its home games in different grounds around the city before moving to its current stadium, the San Siro, in 1926.[7] The stadium, which was built by Milan's second chairman, Piero Pirelli, and has been shared with Inter Milan since 1947,[8] is the largest in Italian football, with a total capacity of 75,817.

Aston Villa Football Club (commonly referred to as simply Villa) is a professional football club based in Aston, Birmingham, England. The club, founded in 1874, compete in the Premier League, the top tier of English football. The team have played at their home ground, Villa Park, since 1897. Aston Villa are one of the oldest and most successful clubs in England, having won the Football League First Division seven times, the FA Cup seven times, the League Cup five times, and the European Cup and European Super Cup once.

Manchester United Football Club, commonly referred to as Man United (often stylised as Man Utd) or simply United, is a professional football club based in Old Trafford, Greater Manchester, England. They compete in the Premier League, the top tier of English football. Nicknamed the "Red Devils" they were founded as Newton Heath LYR Football Club in 1878, but changed their name to Manchester United in 1902. After a spell playing in Clayton, Manchester, the club moved to their current stadium, Old Trafford, in 1910.