Jai Opetaia to fight Deontay Wilder on Fury-Joshua undercard
Australian cruiserweight champion moves up to heavyweight for Cardiff showdown on December 11
Jai Opetaia will step up to the heavyweight division to face former world champion Deontay Wilder on the undercard of the Tyson Fury-Anthony Joshua blockbuster in Cardiff on December 11, in what his promoter Dana White called "a very dangerous fight."