The IBF may have taken away Jai Opetaia’s cruiserweight title since he’s joined the new Zuffa Boxing promotion, but his zero remains intact.

Opetaia completely outclassed Glanton, collecting the Zuffa Boxing cruiserweight world title in his pursuit to become the undisputed champion ...

BoxingScene has confirmed that Jai Opetaia and Brandon Glanton plan to weigh in a second time Sunday morning for a rehydration weight check customary with IBF title fights.

Jai Opetaia became the first champion in the history of Zuffa Boxing on March 8 in Las Vegas, defeating Brandon Glanton.

Zuffa Boxing 04 features Jai Opetaia vs. Brandon Glanton for the Ring Magazine cruiserweight title on March 8. Here's the start time, ring walk info, and how to watch.