Guadalajara geared up for their debut in Segunda División over the summer by adding 10 new players to the squad in hopes of repeating back-to-back promotions.

On 19 July, Jonan García, Ander Gago, Cristian Fernández and Joseba Arriaga were presented as new Guadalajara players.

The AFE and Liga de Fútbol Profesional (LFP) have yet to agree on a guaranteed fund to protect players' wages in the event of their clubs being declared insolvent.

[7] The strike forced Spanish league games scheduled for the weekend of August 20 and 21, including Guadalajara's season opener against Numancia, to be postponed.

[8] On 27 August, Guadalajara started their league season with a 1–1 draw at Estadio Pedro Escartín against Las Palmas after their Match 1 was postponed to 26 October.

The month started with Guadalajara losing back-to-back fixtures including a heavy 4–0[14] defeat at Riazor against Deportivo La Coruña.