Mauricio Ruffy volunteers to be backup for Conor McGregor vs. Max Holloway UFC 329 main event

Mauricio Ruffy, a top lightweight contender from Brazil, has volunteered to serve as the backup fighter for the UFC 329 main event between Conor McGregor and Max Holloway. Ruffy made the offer following his recent win at the UFC Freedom 250 event held at the White House on June 14, 2026. The UFC 329 main event is scheduled for Saturday, July 5, 2026.