Anthony Joshua has signed his contract to fight Oleksandr Usyk in Saudi Arabia in August with a formal announcement set for next week.
Usyk beat Joshua on points last year to win the WBA (Super), WBO and IBF title but the rematch has suffered months of delays.
But Joshua’s promoter Eddie Hearn has confirmed paperwork is now “done”.
The delays had been in part caused by Usyk’s return to Ukraine after the invasion of the country by Russia, however broadcast deals have also been a factor with a suggestion Joshua could move from Sky Sports to DAZN.