Wilder to face unbeaten cruiserweight champion Opetaia on Fury vs Joshua undercard

Deontay Wilder (45-4-1) will face unbeaten WBA 'regular' cruiserweight champion Jai Opetaia (31-0) in December, on the undercard (supporting bouts) of Tyson Fury vs Anthony Joshua at Cardiff's Principality Stadium. Cruiserweight is one division below heavyweight. Opetaia moves up to heavyweight for the first time to face Wilder, a former WBC heavyweight champion.