PFC CSKA Sofia, commonly known as CSKA or CSKA Sofia is a Bulgarian association football club based in Sofia, which for most of its existence competed in A Football Group , the top division of the Bulgarian football league system . CSKA is abbreviation 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 19 natonal 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 the European club competitions.