
Britton Savannah Marshall challenges Clarissa Shields to the undisputed middleweight championship at the O2 Arena in London on September 10.
Marshall holds the WBO title, while the American Shields are the WBC, IBF, WBA and Ring magazine champions.
Like the Shields, Marshall is unbeaten in 12 pro fights, but has 10 by knockout.
In the first all-women’s card hosted in the UK, Mikaela Mayer will face Alicia Baumgardner in a super featherweight unification match.
Mayer is the WBO and IBF Champion, while fellow American Baumgardner holds the WBC belt.
Fighting in the making 10 years
The undisputed clash between Marshall and Shields is a 10-year battle in the making.
“All sports need big competitions to push their limits and this is the biggest competition ever to come from women’s boxing,” said Boxxer promoter Ben Shalom.
The The fight was delayed in May Due to an injury at Marshall, he will now proceed to London instead of the original planned location in Newcastle.
Shields’ only defeat in her entire boxing career was against Marshall as an amateur when they were preparing for the 2012 Olympics – the games in which Shields wins a gold medal and Marshall withdraws in the quarterfinals.
The duo never fought back in the ring but quarreled together on occasion. Both fighters have their own version of how those sparring sessions went, but defeat to Marshall when she was 17 was always a sore point for Shields.
The American has developed into a fantastic fighter ever since, winning world titles in multiple weight divisions and becoming the first boxer – male or female – to hold two undisputed championships in two weight divisions at the same time.
She is a two-time Olympic champion and returned to fight in London for the first time since winning the gold medal at the 2012 Olympics.
Marshall’s amateur career has never quite reached the peak it was promised, but Hartlepool’s professional career has gone from strength to strength in the past two years.
It is ranked as one of the biggest punches in women’s boxing with a 10 knockout and will aim to secure her ninth straight stop when she faces Shields.
Historic night of women’s boxing

The Mayer-Baumgardner Competition is a competition in which the winner can stage an undisputed showdown against South Korean WBA champion Hyun Mi Choi.
Mayer, who has won all 17 professional matches, is a 2016 Rio Olympic who won the WBO belt in October 2020. Eight months later, she added the IBF and Ring Magazine belts by defeating Argentina’s Erica Vari.
Baumgardner, who has won 13 and lost one, defeated Doncaster’s Terry Harper to win the WBC Super Featherweight title in November of last year and made one belt defense.
More to track.