Two heated rivalries will come to a head Saturday, Sept. 10 in a historic championship doubleheader at the O2 Arena in London. (photos by Lawrence Lustig)

Shields Marshall

 

The previously announced main event will see two-time Olympic gold medalist Claressa Shields, the WBC/WBA/IBF/Ring Magazine middleweight champion, aim to once again become undisputed at 160 pounds by facing longtime rival and WBO titleholder Savannah Marshall.

Shields Narshall

 

Shields and Marshall faced off as amateurs, with Marshall edging Shields by decision at the 2012 AIBA Women’s World Championships in Qinhuangdao, China. Shields went 77-1 as an amateur and is the only female boxer to win undisputed titles in two weight classes.

Shields Narshall

 

In the co-feature, Mikaela Mayer will look to get one step closer to becoming the first undisputed champ in her division by putting her WBO/IBF/Ring Magazine junior lightweight titles on the line against WBC champion Alycia Baumgardner.

Shields Narshall
Shields Narshall
Shields Marshall
Shields Marshall

Shields Narshall
Shields Narshall
Shields Narshall
Shields Narshall
Shields Marshall
Shields Marshall
Shields Marshall
Shields Marshall
Shields Marshall
Shields Marshall

Claressa Shields
Claressa Shields
Savannah Marshall
Savannah Marshall