Brunno Ferreira needs a new opponent for UFC 326 after Paulo Costa has withdrawn from the March 7 card, multiple people with knowledge of the situation confirmed to MMA Fighting following a report from Leo Guimaraes.

It’s still unclear what led to Costa’s pullout less than a week after the UFC officially announced the contest for the Las Vegas event.

A one-time title contender, Costa (15-4) returned to the winning column in July with a unanimous decision victory over Roman Kopylov, rebounding from consecutive defeats to Robert Whitakker and Sean Strickland that had dropped his UFC record to 6-4.

Ferreira (15-2), on the other hand, recently beat Marvin Vettori via decision to now ride a three-fight winning streak. “Hulk” did miss weight for that match in December, but improved his promotional record to 6-2 with key victories over Gregory Rodrigues and Vettori.

UFC 326 will take place at Las Vegas’ T-Mobile Arena and feature a BMF title bout between Max Holloway and Charles Oliveira.