MMA fighter Abby Montes, the only woman to have defeated Claressa Shields as a professional, believes that the American will likely never lose a fight again.
Shields has branded herself as the 'GWOAT', meaning Greatest Woman Of All Time, and has proven that nickname to be accurate with a series of wins as both an amateur and professional. She has picked up two undisputed titles in her paid career as well as two Olympic gold medals in the amateurs, and headlined major arena events in London and Detroit.
And she has even made the rare transition from boxing into MMA, taking on two bouts in the PFL smart cage in 2021 before returning a bigger name than ever to the ring. Generally, the move is made the other way - with MMA fighters making the switch to the ring which is perceived to be an easier outing.