By Kate Mcgreavy For Mailonline
Published: 08:45 BST, 1 September 2020 | Updated: 09:01 BST, 1 September 2020
Oleksandr Usyk's team are determined to ensure Anthony Joshua obeys WBO rules so that the pair will meet in the ring.
Ukrainian Usyk is the mandatory challenger for the WBO world heavyweight championship, should he overcome Dereck Chisora and Joshua beats Kubrat Pulev.
The financial terms for the Battle of Britain between Joshua and Tyson Fury have been agreed but Usyk's camp insist AJ must match-up with their man first.