As with Fulham, Brentford and QPR played each other frequently in local cup competitions and leagues from the foundation of both clubs. In 1920, the Football League absorbed many clubs from the Southern Football League, including Brentford and QPR, who competed in the old Third Division (South) regularly in the 1920s, until Brentford's rise up the leagues in the 1930s. After the Second World War, they spent practically every season in the same division for the next 20 years.