Kubrat Pulev (27-1, 14 KOs) and Rydell Booker (26-2, 13 KOs) showed equal weight of 248¼ pounds during an official weigh-in. Fighters will meet in the upcoming evening in Fresno, California.
Before that the Bulgarian was about to meet Mark de Mori, but the Australian candidacy was greeted with widespread criticism.
It is worth noting that Booker was one of the sparring partners of Oleksandr Usyk before his debut in the heavyweight division.
38-year-old Pulev will have to face the winner of a rematch between Anthony Joshua and Andy Ruiz before May next year. The second fight between the Mexican and the Americans is scheduled for December 7 in Saudi Arabia.
In the main event of the evening in Fresno there will be a fight between Jamel Herring (20-2, 10 KOs) and Lamont Roach Jr. (19-0-1, 7 KOs). They will fight for the WBO featherweight title. In the United States it will be broadcasted on ESPN platforms.