Manchester United F.C.

Manchester United Football Club is a professional football club based in Old Trafford, Greater Manchester, England, that competes in the Premier League, the top flight of English football. Founded as Newton Heath LYR Football Club in 1878, the club changed its name to Manchester United in 1902 and moved to Old Trafford in 1910.

Manchester United have won 20 league titles, the most of any English club, 11 FA Cups, four League Cups and a record 20 FA Community Shields. The club has also won three European Cups, one UEFA Cup Winners' Cup, one UEFA Super Cup, one Intercontinental Cup and one FIFA Club World Cup. In 1998–99, the club became the first in the history of English football to achieve the treble of the Premier League, the FA Cup and the UEFA Champions League.

The 1958 Munich air disaster claimed the lives of eight players. In 1968, under the management of Matt Busby, Manchester United became the first English football club to win the European Cup. Alex Ferguson won 38 trophies, including 13 Premier League titles, 5 FA Cups and 2 UEFA Champions Leagues, between 1986 and 2013, when he announced his retirement. Louis van Gaal is the club's current manager after Ferguson's successor David Moyes was sacked after only 10 months in charge.

A.C. Milan

Associazione Calcio Milan (Italian pronunciation: [assotʃatˈtsjoːne ˈkaltʃo ˈmiːlan]), commonly referred to as A.C. Milan or simply Milan, is a professional Italian football club based in Milan, Lombardy, that plays in Serie A. Milan was founded in 1899 by English lace-maker Herbert Kilpin and businessman Alfred Edwards among others. The club has spent its entire history, with the exception of the 1980–81 and 1982–83 seasons, in the top flight of Italian football, known as Serie A since 1929–30.

With 18 officially recognised UEFA and FIFA titles, they are the second most successful club in the world in terms of number of international titles, together with Boca Juniors and Real Madrid, and behind Al Ahly with twenty titles. Milan has won a joint record of three Intercontinental Cups and one of its successor, the FIFA Club World Cup. Milan have also won the European Cup/Champions League on seven occasions, second only to Real Madrid. They have also won the UEFA Super Cup a joint record five times and the Cup Winners' Cup twice. Milan has won every major competition in which it has competed, with the exception of the Europa League (in this competition they have lost two semi-finals in 1972 and in 2002). Domestically, with 18 league titles Milan is the joint-second most successful club in Serie A behind Juventus (31 titles), along with local rivals Inter. They have also won the Coppa Italia five times, as well as six Supercoppa Italiana triumphs.

Real Madrid C.F.

Real Madrid Club de Fútbol (Spanish pronunciation: [reˈal maˈðɾið ˈkluβ ðe ˈfuðβol]; Royal Madrid Football Club), commonly known as Real Madrid, or simply as Real, is a professional football club based in Madrid, Spain.

Founded in 1902 as Madrid Football Club, the team has traditionally worn a white home kit since inception. The word Real is Spanish for Royal and was bestowed to the club by King Alfonso XIII in 1920 together with the royal crown in the emblem. The team has played its home matches in the 81,044-capacity Santiago Bernabéu Stadium in downtown Madrid since 1947. Unlike most European sporting entities, Real Madrid's members (socios) have owned and operated the club throughout its history.

The club is the most valuable sports team in the world, worth €2.5 billion ($3.4 billion) and the world's highest-earning football club for 2013–14, with an annual revenue of €549.5 million. The club is one of the most widely supported teams in the world. Real Madrid is one of three founding members of the Primera División that have never been relegated from the top division, along with Athletic Bilbao and Barcelona. The club holds many long-standing rivalries, most notably El Clásico with Barcelona and the El Derbi madrileño with Atlético Madrid.

Cristiano Ronaldo

Cristiano Ronaldo dos Santos Aveiro, GOIH (born 5 February 1985), known as Cristiano Ronaldo (Portuguese pronunciation: [kɾɨʃtiˈɐnu ʁuˈnaɫdu]), is a Portuguese professional footballer who plays for Spanish club Real Madrid and the Portugal national team. He is a forward and serves as captain for Portugal. By the age of 22, Ronaldo had received Ballon d'Or and FIFA World Player of the Year nominations. The following year, in 2008, he won his first Ballon d'Or and FIFA World Player of the Year awards. He then won the FIFA Ballon d'Or in 2013 and 2014. In September 2015, Ronaldo scored his 500th senior career goal for club and country.

Often ranked as the best player in the world and rated by some in the sport as the greatest of all time, in 2015 Ronaldo was named the best Portuguese player of all time by the Portuguese Football Federation, during its 100th anniversary celebrations. He is the first player to win four European Golden Shoe awards. With Manchester United and Real Madrid, Ronaldo has won three Premier Leagues, one La Liga, one FA Cup, two Football League Cups, two Copas del Rey, two UEFA Champions Leagues, one UEFA Super Cup and two FIFA Club World Cups.

Inter Milan

F.C. Internazionale Milano, commonly referred to as Internazionale (pronounced [internatt͡sjoˈnaːle]) or simply Inter, and colloquially known as Inter Milan outside of Italy, is a professional Italian football club based in Milan, Lombardy. The club have played continuously in the top tier of the Italian football league system since its debut in 1909.

Inter Milan have won 30 domestic trophies, including the league 18 times, the Coppa Italia seven times and the Supercoppa Italiana five times. From 2006 to 2010, the club won five successive league titles, equalling the all-time record. They have won the Champions League three times: two back-to-back in 1964 and 1965 and then another in 2010, the last completed an unprecedented (for an Italian team) seasonal treble with the Coppa Italia and the Scudetto. The club has also won three UEFA Cups, two Intercontinental Cups and one FIFA Club World Cup.

Inter's home games are played at San Siro, also known as the Stadio Giuseppe Meazza. The stadium, which is shared with rivals A.C. Milan, is the largest in Italian football, with a total capacity of 80,018. A.C. Milan are considered one of their biggest rivals, and matches between the two teams are known as Derby della Madonnina, one of the most followed derbies in football. As of 2010, Inter is the second-most supported team in Italy, and the sixth most-supported team in Europe. The club is one of the most valuable in Italian and world football. It was a founding member of the now-defunct G-14 group of Europe's leading football clubs.