Unsouthpaws.

sonny liston? his straight right was mighty awkward. i think anyone with a monster jab and left hook and the abililty to mix both punches up between jab and hook and double and triple hooks seem like ly to be converted. tyson and frazier are two others i heard in commentary being said they are converted southpaws, although when tysons skills started fading in 1990 he seem to rely more on an overhand right which surely wouldnt be natural for a lefty?