Match: That Other Hot Teenaged Superman Clone
To me, Superboy is basically Young Justice's Mr. Fanservice. The way he's designed, his frequent shirtlessness, his constantly torn clothes and the fact that (at least for the first season) both his female teammates have major crushes on him (Artemis: "Mmmm, that boy...") make it obvious that one of the reasons he's there is to make the fangirls (and fanboys *ehem*) squee. So it should come as no surprise that another Kryptonian clone who looks almost exactly like him would be good beefcake material as well.
In "Agendas", Conner visits Cadmus Labs and unwittingly releases Match, another teenaged Superman clone, think Evil Conner with black eyes, more powers and less talking. This version of the characters seems to be an amalgam of Match & Superboy-Prime in the comics.
Conner's gets clothing damage too! Duh
Comments
@Cesar, the reverse S was probably intentional. The character is supposed to be dumb, he basically is a blank slate, he has no memories & can't even speak. And as DAN said, it could also be a homage to Bizzarro.
I think I have only read a story featuring Match, back on the old Young Justice (comics) days.