Natasha Jonas is adamant that her power will shock Mikaela Mayer when they fight on January 20.
Jonas defends her IBF welterweight title against the USA’s Mayer at the M&S Bank Arena in Liverpool
The champion leapt up to super-welterweight from super-feather and unified three 154lb world titles in 2022. Jonas moved down a division to win the IBF belt earlier this year.
Mayer unified super-featherweight titles but has only just risen to welter, while now Jonas in contrast is more established at the weight.
The Liverpudlian is certain a differential in punch power will favour her.