Oleksandr Usyk has scored a fifth-round knockout of Daniel Dubois to became the undisputed world heavyweight champion for a second time on Saturday.

Oleksandr Usyk is undisputed heavyweight champion for a second time in his career. Usyk dominated Daniel Dubois in their rematch in London. With the win, Usyk added the IBF title he never lost to his WBA,

Almost two years after knocking out Daniel Dubois, Oleksandr Usyk did it again to assert his reign as undisputed heavyweight boxing champion.