It was meant to be a list of guys that had challenged or held world titles before, looking to come back after defeat(s). Skelton has never challenged. Maskaev is already a belt-holder, so he's hardly on the comeback trail anymore. Sanders could go on, same with Toney. It's just my list, feel free to make your own! Thought it would help to scoop a few names together, but every time I do one people just complain... O_-
And what title has Donald held or challenged for? :yep Well, "Senior tour" implies age is the defining factor and there seems to be no other consistent criteria.