Oleksandr Usyk knocked out Daniel Dubois to reign as the undisputed heavyweight boxing champion. Round-by-round analysis.

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

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