The fearsome Beterbiev holds three of the belts in the WBC, IBF and WBO versions and is the only world champion who boasts a 100 per cent knockout ratio, while fellow undefeated Russian Bivol famously stopped Canelo Alvarez in his tracks and has provided 11 successful defences of the WBA title he has held since 2017. A titanic showdown between former amateur team-mates promises to be truly epic.
