Two-weight world champion Jonas defends her IBF World Welterweight Title against former IBF and WBO World Super Featherweight Champion Mayer in a landmark night for women’s boxing. Jonas, first defence of the IBF crown she win over Kandi Wyatt last year, having previously unified the WBC, WBO and IBF World Super Welterweight Titles.
U.S. star Mayer, a fellow Olympian, former IBF and WBO World Super Featherweight Champion. Mayer is moving up in weight to challenge for welterweight gold.