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Story summary
- IBF gave Oleksandr Usyk a seven-day deadline to defend his IBF heavyweight title against mandatory challenger Daniel Dubois or vacate it.
- The organization will strip Usyk of the IBF belt if he does not commit within the week.
- If he vacates, the IBF will order the top two contenders—likely Dubois versus Anthony Joshua or Filip Hrgovic—to fight for the vacant title.
