Olympique de Marseille

Olympique de Marseille or simply Marseille, is a French association football club based in Marseille. Founded in 1899, the club play in Ligue 1 and have spent most of their history in the top tier of French football. Marseille have been French champions a nine times and have won the Coupe de France a record ten times. In 1993, the club became the first and only French club to win the UEFA Champions League. In 1994, Marseille were relegated because of a bribery scandal, losing their domestic trophy, but not the UEFA Champions League title. In 2010, Marseille became French champions again, under the stewardship of former club captain Didier Deschamps.

Marseille's home ground is the 60,031-person-capacity Stade Vélodrome located in the southern part of the city, where they have played since 1937. The Stade Vélodrome is renowned for its lively atmosphere. The club have a large fan-base having regularly averaged the highest all-time attendance in French football. Marseille's average home gate for the 2008–09 season was 52,276, the highest in Ligue 1. The club is sixteenth football club in terms of annual revenue, generating €135.7million in 2012.

Marseille's traditional kit colours were white shirts and shorts with blue socks until 1986. Since 1986, Marseille have played with white shirts, white shorts and white socks, and the blue color became lighter due to Adidas marketing but in 2012-2013, the club returned to his original kit, wearing blue socks. The club's current badge was adopted in 2004. The club's motto Droit Au But (French for "Straight to the Goal") appears under the badge and a star representing the victory in the Champions League is featured on the top. In 1997, Marseille was purchased by Franco-Swiss businessman Robert Louis-Dreyfus.

Manchester City F.C.

Manchester City Football Club is an English Premier League football club based in Manchester. Founded in 1880 as St. Mark's (West Gorton), they became Ardwick Association Football Club in 1887 and Manchester City in 1894. The club has played at the City of Manchester Stadium since 2003, having played at Maine Road from 1923. The club's most successful period was in the late 1960s and early 1970s when they won the League Championship, FA Cup, League Cup and European Cup Winners' Cup under the management team of Joe Mercer and Malcolm Allison.

After losing the 1981 FA Cup Final, the club went through a period of decline, culminating in relegation to the third tier of English football for the only time in their history in 1998. Having regained Premier League status, the club was purchased in 2008 by Abu Dhabi United Group and became one of the wealthiest in the world. In 2011, Manchester City qualified for the Champions League and won the FA Cup. In 2012, the club won the Premier League, their first league title for 44 years.

FC Schalke 04

Fußballclub Gelsenkirchen-Schalke 04 e. V., commonly known as simply FC Schalke 04 or Schalke (German pronunciation: [ˈʃalkə]), is a German association-football club originally from the Schalke district of Gelsenkirchen, North Rhine-Westphalia. Schalke has long been one of the most popular football teams in Germany, even though major successes have been rare since the club's heyday in the 1930s and early 1940s. Schalke play in the Bundesliga, the top tier of the German football league system. The football team is the biggest part of a large sports club with more than 100,000 members (as of August 2011) making it the second largest sports club in Germany. Other activities offered by the club include basketball, handball, and track and field.

Schalke won its first major European trophy in 1997 by winning the UEFA Cup. Since 2001, Schalke's stadium is the Veltins-Arena. Schalke holds a long-standing rivalry with Borussia Dortmund, arguably the most widespread and well-known rivalry in German football, and matches between the two teams are referred to as the Revierderby. In terms of revenue, Schalke is the third biggest sports club in Germany and the fourteenth biggest football club in the world, generating €174.5 million in 2012. The mascot of the club is called Erwin (also Ährwin).

Valencia CF

Valencia Club de Fútbol also known as Valencia CF, Valencia or Los Che) are a Spanish football club based in Valencia. They play in La Liga and are one of the most successful and biggest clubs in Spanish football and European football. Valencia have won six La Liga titles, seven Copa del Rey trophies, two Fairs Cups (which was the predecessor to the UEFA Cup), one UEFA Cup, one UEFA Cup Winners' Cup, and two UEFA Super Cups. They also reached two UEFA Champions League finals in a row, losing to La Liga rivals Real Madrid in 2000 and then to German club Bayern Munich on penalties after a 1–1 draw in 2001. Valencia were also members of the G-14 group of leading European football clubs. In total, Valencia have reached seven major European finals, winning four of them.

In the all-time La Liga table, Valencia is in third position behind Real Madrid and FC Barcelona. In terms of continental titles, Valencia is again the third-most successful behind the two, with these three being the only Spanish clubs to have won five or more continental trophies.

Valencia were founded in 1919 and have played their home games at the 55,000-seater Mestalla since 1923. They are due to move into the new 75,000-seater Nou Mestalla in the north-west of the city in 2013. Valencia have a long-standing rivalry with Levante UD, also located in the City of Valencia, and with two others club in the Valencian Community region, Hércules CF and Villarreal CF.

Valencia are the third most supported football club in Spain, behind only Real Madrid and FC Barcelona. It is also one of the biggest clubs in the world in terms of number of associates (registered paying supporters), with more than 50,000 season ticket holders and another 20,000  season ticket holders on the waiting list, who can be accommodated in the new 75,000-seater stadium.

Arsenal F.C.

Arsenal Football Club is an English Premier League football club based in Holloway, London. One of the most successful clubs in English football, it has won 13 First Division and Premier League titles and 10 FA Cups. Arsenal holds the record for the longest uninterrupted period in the English top flight and would be placed first in an aggregated league of the entire 20th century. It is the second side to complete an English top flight season unbeaten (in the 2003–04 season), 
and the only one to do so across 38 matches.

Arsenal was founded in 1886 in Woolwich and in 1893 became the first club from the south of England to join the Football League. In 1913, it moved north across the city to Arsenal Stadium in Highbury. In the 1930s the club won five League Championship titles and two FA Cups. After a lean period in the post-war years it won the League and FA Cup Double, in the 1970–71 season, and in the 1990s and first decade of the 21st century won two more Doubles and reached the 2006 UEFA Champions League Final. Arsenal has a long-standing rivalry with North London neighbours Tottenham Hotspur, with whom it contests the North London derby. Arsenal is the fourth most valuable association football club in the world as of 2012, valued at $1.3 billion.

Juventus F.C.

Juventus Football Club S.p.A, commonly referred to as Juventus and colloquially as Juve (pronounced [ˈjuːve]), are a professional Italian association football club based in Turin, Piedmont. The club is the third oldest of its kind in the country and has spent the majority of its history, with the exception of the 2006–07 season, in the top flight First Division (known as Serie A since 1929).

Founded in 1897 as Sport Club Juventus by a group of young Torinese students, among them, who was their first president, Eugenio Canfari, and his brother Enrico, author of the company's historical memory; they are managed by the industrial Agnelli family since 1923, which constitutes the oldest sporting partnership in Italy, thus making Juventus the first professional club in the country. Over time, the club has become a symbol of the nation's culture and italianità ("Italianness"), due to their tradition of success, some of which have had a significant impact in Italian society, especially in the 1930s and the first post-war decade; and the ideological politics and socio-economic origin of the club's sympathisers. This is reflected, among others, in the club's contribution to the national team, uninterrupted since the second half of 1920s and recognised as one of the most influential in international football, having performed a decisive role in the World Cup triumphs of 1934, 1982 and 2006. The club's fan base is larger than any other Italian football club and is one of the largest world-wide. Support for Juventus is widespread throughout the country and abroad, mainly in countries with a significant presence of Italian immigrants.