On  July 28th, 1920,  there was a match scheduled to be played between Mohun Bagan A.C. and Jorabagan in a Coochbehar Cup tie.   Mohun Bagan was a name to conjure with them. However, when they fielded the team they dropped one of the most versatile players from the team and took the field without Sailesh Bose, their star halfback. Watching this incident but not in a position to bear it,, industrialist Suresh Chandra Chaudhuri, who was also the Vice- President of Mohun Bagan A.C, pleaded with the club authorities for Sailesh Bose's inclusion, but to no avail. Annoyed with the entire happening of events, Suresh Chandra Chaudhuri instantly cut all ties with his old club and formed a new club along with Sailesh Bose, Ramesh Chandra (Nasha) Sen, Raja Manmatha Nath Chaudhuri and Aurobinda Ghosh. A new club by the name of East Bengal FC was set up on 1st August 1920. The name was kept as East Bengal because most of their founders hailed from that region of Bengal.

Futbol Club Barcelona commonly referred to as Barcelona and colloquially known as Barça ([ˈbaɾsə]), is a professional football club based in Barcelona, Catalonia, Spain, that competes in La Liga, the top flight of Spanish football.

Founded in 1899 by a group of Swiss, Catalan, German, and English footballers led by Joan Gamper, the club has become a symbol of Catalan culture and Catalanism, hence the motto "Més que un club" ("More than a club"). Unlike many other football clubs, the supporters own and operate Barcelona. It is the third-most valuable sports team in the world, worth $5.51 billion, and the world's fourth richest football club in terms of revenue, with an annual turnover of €582.1 million. The official Barcelona anthem is "Cant del Barça", written by Jaume Picas and Josep Maria Espinàs.  Barcelona traditionally plays in dark shades of blue and garnet stripes, hence the nickname Blaugrana.

Domestically, Barcelona has won a record 77 trophies: 27 La Liga, 31 Copa del Rey, 14 Supercopa de España, three Copa Eva Duarte, and two Copa de la Liga titles, as well as being the record holder for the latter four competitions. In international club football, the club has won 22 European and worldwide titles: five UEFA Champions League titles, a record four UEFA Cup Winners' Cups, a joint record five UEFA Super Cups, a record three Inter-Cities Fairs Cups, a joint record two Latin Cups, and three FIFA Club World Cups.] Barcelona was ranked first in the International Federation of Football History & Statistics Club World Ranking for 1997, 2009, 2011, 2012 and 2015, and occupies the ninth position on the UEFA club rankings as of May 2023.The club has a long-standing rivalry with Real Madrid, and matches between the two teams are referred to as El Clásico.