Answer
IBF: Jai Opetaia vacated the International Boxing Federation (IBF) cruiserweight title. This decision was made in order for Opetaia to pursue a fight against Mairis Briedis for the World Boxing Council (WBC) and World Boxing Organization (WBO) cruiserweight titles. By vacating the IBF title, Opetaia is able to focus on his goal of becoming a unified cruiserweight champion.