In an effulgent display of pugilistic ascendancy, Oleksandr Usyk ruthlessly knocked out Daniel Dubois in the fifth round to become the undisputed world heavyweight champion once again at a packed Wembley Stadium.

The Ukrainian sensation made history by becoming the first men's boxer to claim undisputed championship status for a third time, having previously reigned at cruiserweight and heavyweight. In front of approximately 90,000 aficionados, Usyk floored Dubois twice in a frenetic fifth round to capture the IBF title, adding it to his WBC, WBA, and WBO belts.

Despite being 11 years younger and weighing 26 pounds more, the 27-year-old Londoner was unable to establish any authority against the masterful southpaw. Usyk dictated the tempo from the opening bell, piercing Dubois' guard with a precise jab before unleashing a devastating left-right combination in the fifth that sent Dubois to the canvas.

Official Social Media Verification: ESPN Boxing officially corroborated the historic nature of this bout via their verified X account, highlighting Usyk's unprecedented achievement in the heavyweight division.

Oleksandr Usyk ruthlessly knocked out Daniel Dubois in Round 5 to become the undisputed world heavyweight champion again. The first men's boxer to become an undisputed champion for a third time. ???????? https://t.co/espnboxing

— ESPN Boxing (@ESPNBoxing) July 15, 2026

For comprehensive fight analysis and expert commentary, readers are directed to the verified primary source report on ESPN.