UFC 163: Amanda Nunes - Enter "The Lioness" - will battle Sheila Gaff

Two women will step into the Octagon™ for the first time ever in Brazil as two aggressive strikers, Sheila "The German Tank" Gaff and Amanda "The Lioness" Nunes, face off at UFC 163 in Rio de Janeiro. Nunes, who is making her UFC debut, owns six knockouts in seven career wins and promises to bring it in her battle with Gaff. Catch this historic clash at UFC 163