The club decided to form its own league calling it "Unión Nacional de Association Foot-Ball".

The league would be played in the Campo Asturias which was constructed in the Paseo de la Reforma of Mexico City.

With this problem in hand the Primera Fuerza changed its mind and allowed the club to take part in the upcoming 1919 tournament.

[2] Necaxa (México), an old Primera Fuerza member who didn't accept professionalism in 1943, re-joined to fill the vacant place.

After this season, Asturias, Real Club España and Moctezuma retired from the league due to differences with the Federation.