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Full undercard for Natasha Jonas vs. Mikaela Mayer IBF women’s welterweight title bout

We take a look at what to expect from the full card as Natasha Jonas faces Mikaela Mayer in a welterweight bout on Saturday, January 20.

Natasha Jonas v Mikaela Mayer Press Conference Photo by Jan Kruger/Getty Images

The women’s IBF welterweight title is up for grabs as Natasha Jonas (14-2-1, 9 KOs) defends her belt against Mikaela Mayer (19-1, 5 KOs) this Saturday, January 20. The bout takes place at M&S Bank Arena in Liverpool, England. Coverage on ESPN+ begins at 2 p.m. ET.

Jonas, 39, is a two-weight world champion fighting out of Liverpool. She previously held the IBF, WBO, and WBC light middleweight titles before a shift to welterweight. In her debut at 147 pounds, she stopped Kandi Wyatt with an 8th-round TKO, securing the vacant IBF title.

Mayer, 33, was once the unified super featherweight champion, holding the WBO and IBF super featherweight belts before losing to Alycia Baumgardner in October 2022. Since then she has won her last two including a unanimous decision win over Lucy Wildheart in April 2023. Now she looks to change weight again and dethrone Jonas at 147.

Before Jonas and Mayer clash, the undercard features a couple of worthy contenders across multiple weight divisions. In the co-main event, Jack Cullen (22-4-1, 10 KOs) will defend his British super middleweight title against Zak Chelli (14-2-1, 7 KOs). Cully enters this bout as a -140 favorite, while Ball is listed as a +110 underdog at DraftKings Sportsbook.

In the main event, Jonas is favored to win with -135 odds, while Mayer is a +105 underdog. The favored method of victory is Jonas by decision (+100).

Full Card for Natasha Jonas vs. Mikaela Mayer

  • Main event: Natasha Jonas won SD-10 over Mikaela Mayer (93-97, 96-95, 96-94) Jonas retains IBF women’s welterweight title
  • Title fight: Zak Chelli won UD-12 over Jack Cullen (115-114, 116-113, 116-112) Chelli wins European super middleweight titles
  • Karriss Artingstall won PTS-8 over Lila dos Santos Furtado (77-75)
  • Ste Clarke won TKO-3 over Vasif Mamedov (1:53)
  • Aaron McKenna won TKO-6 over Mickey Ellison (2:21)