Inter Milan beat Bayern Munich 2–0 in the UEFA Champions League final in Madrid, Spain to become the first, and so far only, Italian team to win the historic treble (Serie A, Coppa Italia, Champions League).

Football Club Internazionale Milano, commonly referred to as Internazionale or simply Inter, and colloquially known as Inter Milan in English-speaking countries, is an Italian professional football club based in Milan, Lombardy. Inter is the only Italian team to have always participated in the top division of Italian football since its debut in 1909 and the only one that has never been relegated in Serie B. Since 1947, Inter has shared the San Siro stadium with AC Milan—the club from which it originally split. The San Siro is the largest stadium in Italy, with a capacity of 75,817. The long-standing rivalry between the two clubs, known as the Derby della Madonnina, is one of the most widely followed derbies in world football.

Fußball-Club Bayern München e. V., commonly known as Bayern Munich, FC Bayern or simply Bayern, is a German professional sports club based in Munich, Bavaria. They are most known for their men's professional football team, who play in the Bundesliga, the top tier of the German football league system. Bayern are the most successful club in German football and are among the world's most decorated, having won a record 34 national titles, including eleven consecutive titles from 2013 to 2023 and a record 20 national cups, alongside numerous European titles.

The UEFA Champions League (UCL) is an annual club association football competition organised by the Union of European Football Associations (UEFA) that is contested by top-division European clubs. The competition begins with a round robin league phase to qualify for the double-legged knockout rounds, and a single-leg final. It is the most-watched club competition in the world and the third most-watched football competition overall, behind only the FIFA World Cup and the UEFA European Championship. It is one of the most prestigious football tournaments in the world and the most prestigious club competition in European football, played by the national league champions of their national associations.