Britain's Joshua, the former WBA, IBF and WBO champion, will take on Sweden's Otto Wallin while American Wilder, the former WBC champion, faces New Zealand's Joseph Parker at Riyadh's Kingdom Arena. Parker is also a former WBO champion. Joshua and Wilder could fight each other next year if both win in Riyadh. Ukrainian Usyk had been due to fight WBC champion Tyson Fury for the undisputed crown in Riyadh on Dec. 23 but that has been put back to give the Briton more time after a bruising non-title fight with Francis Ngannou. Joshua told reporters last month that a fight between him and Wilder could be staged on the undercard of the Usyk v Fury clash.

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Persons: Anthony Joshua, Otto Wallin, Peter Cziborra, Deontay Wilder, Britain's Joshua, Sweden's Otto Wallin, American Wilder, Zealand's Joseph Parker, Parker, Joshua, Wilder, Dmitry Bivol, Britain's Lyndon Arthur, Jai Opetaia, Britain's Ellis Zorro, Daniel Dubois, Oleksandr Usyk, Jarrell Miller, Usyk, Tyson Fury, Francis Ngannou, Boxing's Eddie Hearn, Frank Warren, " Hearn, I've, Alan Baldwin, Ed Osmond Organizations: Queensberry, Riyadh Season Press, OVO, WBA, IBF, WBO, WBC, Riyadh's, Australian WBC, AJ, Thomson Locations: Riyadh, London, Britain, Saudi Arabia, Australian, British, Poland, Saudi