Sydney Sweeney is unrecognizable as she channels famous athlete for upcoming role Fox NewsSydney Sweeney Looks Unrecognizable in New Role Transformation Yahoo EntertainmentSydney Sweeney looks unrecognizable sporting boxer Christy Martin’s brown mullet for biopic New York Post Unrecognizable! Sydney Sweeney’s jaw-dropping makeunder as boxing legend Christy Martin leaves fans in awe Marca.comShocking transformation! Sydney Sweeney looks unrecognizable in a dark mullet for biopic on this boxer. See pics Hindustan Times