Cronulla-Sutherland District Rugby Football League

The Cronulla-Sutherland District Rugby Football League (Cronulla-Sutherland District Junior Rugby Football League in the case of junior football) is an amateur competition for rugby league clubs in and around the Sutherland Shire district of Sydney, New South Wales, Australia.

The Cronulla-Sutherland District Rugby Football League was formed in the early 1950s following the formation of several new Sutherland Shire based clubs and the arrangement of a committee that would eventually become the CSDRFL. All Shire based clubs had previously played in several Inter-District matches throughout the year but with the formation of a localised Sutherland league these were no longer deemed necessary.

The Cronulla-Sutherland Junior District Rugby Football League was formed in 1963 after a general meeting among several of the already established junior clubs whom decided it would be beneficial to form and arrange an annual competition amongst themselves and other teams in the Sutherland Shire.

Since its inception several new teams have gradually joined the association where the team numbers now stand at a total of sixteen clubs.

Southern Open Age
Southern Open Age (previously known as Cronulla A-Grade) is the premier rugby league competition clubs in the Cronulla-Sutherland and St. George districts of Sydney. After absorbing the St. George District A-Grade competition in 2021, the competition now features 12 clubs in 2023, across two divisions, Gold (First Grade) and Silver (Second Grade), the latter of which is split into two conferences.

Notable players
Since the establishments of both the CSDRFL and the CSDJRFL many local players have gone on to play first grade for many of the Australian and overseas professional teams contained in the National Rugby League and the Super League.

The vast majority of these players have usually gone on to appear for both the local sides in the area; the Cronulla-Sutherland Sharks and the St. George Dragons/St George Illawarra Dragons.