Home LONDON, ENGLAND – OCTOBER 15: Claressa Shields looks on ahead of the IBF, WBA, WBC, WBO World Middleweight Title fight between Claressa Shields and Savannah Marshall on the Shields vs Marshall Boxxer fight night which is the first women’s only boxing card in the UK at The O2 Arena on October 15, 2022 in London, England. (Photo by James Chance/Getty Images) LONDON, ENGLAND - OCTOBER 15: Claressa Shields looks on ahead of the IBF, WBA, WBC, WBO World Middleweight Title fight between Claressa Shields and Savannah Marshall on the Shields vs Marshall Boxxer fight night which is the first women's only boxing card in the UK at The O2 Arena on October 15, 2022 in London, England. (Photo by James Chance/Getty Images)

LONDON, ENGLAND – OCTOBER 15: Claressa Shields looks on ahead of the IBF, WBA, WBC, WBO World Middleweight Title fight between Claressa Shields and Savannah Marshall on the Shields vs Marshall Boxxer fight night which is the first women’s only boxing card in the UK at The O2 Arena on October 15, 2022 in London, England. (Photo by James Chance/Getty Images)

LONDON, ENGLAND – OCTOBER 15: Claressa Shields looks on ahead of the IBF, WBA, WBC, WBO World Middleweight Title fight between Claressa Shields and Savannah Marshall on the Shields vs Marshall Boxxer fight night which is the first women’s only boxing card in the UK at The O2 Arena on October 15, 2022 in London, England. (Photo by James Chance/Getty Images)

Keith Thurman from the USA poses for a photo during his weigh-in against Manny Pacquiao from the Philippines on July 19, 2019, at the MGM Grand Hotel and Casino in Las Vegas, Nevada. – The fighters will meet on July 20th in a WBA super world welterweight title fight (Photo by John Gurzinski / AFP) (Photo credit should read JOHN GURZINSKI/AFP via Getty Images)