Chelsea Football Club's increasing success over the past twenty years has allowed its fans to claim that they are the biggest club in London, at least on form. Founded in 1905, Chelsea Football Club has won over thirty trophies, which include six league titles and six European trophies. Their iconic home ground of Stamford Bridge has seen a massive upturn in the team's fortunes, going from respectable cup side to a Premier League heavyweight.
Winning their first trophy in 1955, the FA Cup for the first time in 1970, and the UEFA Cup Winners' Cup, in 1971, Chelsea's history is distinguished and worthy of respect. Largely in malaise from the 80s onwards, Chelsea Football Club became galvanised by the arrival of Russian billionaire Roman Abramovich, who brought forth Chelsea's most successful period in its entire history, winning five league titles and the UEFA Champions League, the only club to have done so to this day.
Chelsea are one of five clubs to have won all three of UEFA's main club competitions, and is the only side from the capital to have ever done so. The Blues maintain a neighbouring rivalry with fellow London sides Arsenal Football Club and Tottenham Hotspur. Beyond London, a fierce rivalry with Leeds United is set to be reignited due to the latter's promotion to the Premier League.