Oleksandr Usyk once again became the undisputed heavyweight champion of the world with a fifth-round knockout win over Daniel Dubois at Wembley Stadium in London, England.

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

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