PFC CSKA Sofia is a professional football club based in Sofia, Bulgaria. CSKA's abbreviation stands for Central Sports Club of the Army. The club was officially founded in 1948, even though its roots date back to an army officers' club founded in 1923. At present, however, the club does not have any direct ties to the Bulgarian Army. Since its formation, CSKA has won 31 domestic titles and 20 national cups and is the best performing Bulgarian football club based on the all-time national statistics. Internationally, CSKA has reached two European Cup semi-finals, four European Cup quarter-finals, and one Cup Winners' Cup semi-final, also making it the best performing Bulgarian club in European club competitions. The club's home colours are red and white. CSKA's home ground is the Balgarska Armia Stadium (Bulgarian Army Stadium) with a capacity of 22,015 spectators.