Mayer faces Cameron in a 154-pound championship unification bout that pits two of women’s boxing’s best pound-for-pound fighters against each other Saturday night at bp pulse LIVE in Birmingham, England. The Ring’s vacant junior middleweight title will also be on the line, with Mayer being The Ring’s No. 1-rated contender at 154 pounds and Cameron being No. 2.

Las Vegas’ Mayer (22-2, 5 KOs) holds the WBA and WBC titles, while England’s Cameron (22-1, 8 KOs) is the WBO champion. Their 10-round bout headlines MVPW06 and will be streamed on ESPN+ in the United States and broadcast by Sky Sports in the United Kingdom.

Mayer is No. 3 on The Ring’s pound-for-pound list, behind only Katie Taylor and Claressa Shields. Cameron is No. 5.

“I think I can just do more,” Mayer said at their final press conference Thursday. “I think that you can look at Chantelle Cameron and her style, and it’s very straightforward. You know what she’s gonna do. I’m a little bit more diverse, so when I need to switch up the game plan, if need be, I can. I have other tools in my pocket, and at these big fights, sometimes you have to adjust and do something different. If I have to, I got what it takes to do that.”

Mayer, 36, beat Canada’s Mary Spencer by unanimous decision in her last fight to win the then-vacant WBC and WBO 154-pound titles October 30 in Montreal. That one-sided victory made the Woodlands, California, native a three-division titleholder.

Mayer, who also holds the WBO welterweight title, enters this bout on a three-fight win streak. Her lone defeats have come in the UK, as she lost split decisions to unified 130-pound titleholder Alycia Baumgardner in October 2022 and Natasha Jonas in a fight for the IBF welterweight title in January 2024.

Cameron, 35, became a two-division champion in her last appearance, when she beat Michaela Kotaskova (12-1-2, 4 KOs) by unanimous decision to win the then-vacant WBO 154-pound title April 5 in London. She remains the only fighter to beat Ireland’s Taylor.

Cameron defeated Taylor (25-1, 6 KOs) by majority decision in May 2023 to remain the undisputed 140-pound champion. Taylor avenged that loss six months later when she beat Cameron by majority decision.

Cameron has won four straight fights since losing to Taylor.

“We both have similar careers if you’ve followed us,” Mayer said of Cameron. “We’ve had a lot of ups and a few downs, but it’s great that we both always wanted to continue to fight the best. We’re coming together at a time when we’re still at the top of our game. We’ve navigated our way back to the top, and this is the time to go against each other. I’m glad it’s happening now and not later.”