Former bantamweight title challenger Marlon "Chito" Vera is out of his UFC 316 matchup against Mario Bautista for an undisclosed reason, sources told MMA Fighting's Mike Heck.

Vera-Bautista was scheduled for the main card of the June 7 pay-per-view event in Newark.

The promotion is seeking a replacement to step in against Bautista on short notice.

Vera was looking to rebound from back-to-back losses to Sean O'Malley and Deiveson Figueiredo. The No. 7-ranked bantamweight hasn't been victorious since a unanimous decision win over Pedro Munhoz in August 2023.

Bautista, ranked No. 10 in the division, is riding a seven-fight winning streak. He most recently defeated UFC Hall of Famer Jose Aldo by split decision at UFC 307 last October.

In the UFC 316 main event, 135-pound champion Merab Dvalishvili will defend his title in a rematch against O'Malley. The card also features a women's bantamweight title bout between champ Julianna Pena and Kayla Harrison.