Jose Delgado replaces Yair Rodriguez in main event at Noche UFC 4 against Jean Silva, per report

Ultimate Fighting Championship officials have a late replacement to handle at Noche UFC 4. A report from Yahoo Sports says Yair Rodriguez has pulled out of the Sept. 12 main event against Jean Silva at the Desert Diamond Arena in Glendale, Arizona, and that Jose Delgado will replace him.

Noche UFC, UFC’s annual marquee showcase themed around its Latin-American fanbase, is designed to put a high-profile bout at the center of the event. With Rodriguez out, the matchup leading the card shifts from the stylistic matchup originally planned between Rodriguez and Silva to one built around Delgado’s entrance into a main-event spotlight.

According to the same report, Silva had been scheduled to face Rodriguez in the main event before Rodriguez’s withdrawal. The reason for Rodriguez’s pullout was not described in the accessible report details, and no further explanation was provided in the information available for this write-up.

Delgado’s step-in also changes the preparation timeline for both fighters, since a short-notice replacement typically compresses the usual weeks of camp planning. For Silva, the change affects not only game planning but also how he approaches distance, timing, and wrestling or clinch threats based on the opponent he actually faces in the cage.

Rodriguez’s absence matters beyond the single bout. Rodriguez is a recognizable name in the UFC’s featherweight and bantamweight orbit for his volume and finishing threat, and a late withdrawal can also reshape how fans and analysts view the week’s headliner even before any formal bout announcement is made.

For Delgado, the opportunity functions as a test of whether he can translate preparation and momentum into a main-event performance on a major stage. The fight’s dynamics will likely hinge on whether he can impose his preferred rhythm early and avoid the moments that could allow Silva to settle in.

What to watch next is confirmation of the updated headliner and the official UFC communications regarding the change. With the event date only days away, the most meaningful developments will be an official bout announcement, the final weight-class details as listed by the UFC, and any further context around Rodriguez’s withdrawal.