In 1939 the club switched codes and began playing rugby league, which had gained success with the formation of the French championship in 1934.

Disheartened by rugby in France at this time the club was dissolved in 1931 after they had been threatened with a ban from entering the competition due to financial payments.

The following season the Sangliers lifted the French Rugby League Championship for the first time beating Roanne XIII in the final.

[1] During the 70s the club under Michel Maïque produced a host of excellent young and local players culminating in a 1978 title win over XIII Catalan in which 12 of the starting lie up were from their own youth team.

There then followed a spell of dominance from the club in which they won 4 straight titles and two cup wins resulting in two consecutive double campaigns in 2010 and 2011.

In 2015 they won the Lord Derby Cup for a sixth time beating St Esteve XIII Catalan in the final.

Between 1905 and 1919 rugby was played in the grounds of the hospital at the front of the building named as 'Jardins de Blasco' it had one wooden stand, that was stripped away during the war.