The heavyweight debut of undefeated Oleksandr Usyk (16-0, 11 KOs) is against seasoned veteran Chazz Witherspoon (38-3, 29 KOs), who replaces Tyrone Spong following a positive drug test earlier this week.
Both showed respect on the face to face meeting before the bout.
In the co-main event of the evening in Chicago, Russia’s Dmitry Bivol (16-0, 11 KOs) will defend his WBA World Light Heavyweight Title against Lenin Castillo (20-2-1, 15 KOs) of the Dominican Republic.
Kicking off the main broadcast, WBC and WBA World Female Super Light titlist Jessica McCaskill (7-2, 3 KOs) of Chicago will meet Erica Farias (26-3, 10 KOs) of Argentina in a rematch of their hotly-contested fight.