Im from mexico and i saw a recent interview with Sin Cara in a tv show i think its called "Tercera Caida", he said that he was really sad because some Superstars refused to wrestle with him, or even train with him. He said only few of them showed support, like Ted dibiase and heath slater.
He also requested a change on his mask, so he can see better, but the WWE officials said its part of the gimmick, the mask has to keep the Mystic thing, something like that.
I remember they asked him about Del Rio, and Sin Cara said "No comments". i dont really understand that.
Way to go, WWE.
It's sad because I saw his early stuff and he is fantastic but with all those things like the lack of support or the retard thing of the mask hardly somebody can work.
As somebody said already, a time in FCW would have helped him and the other wrestlers but WWE dropped the ball searching a quick success.