10. Andrade "Cien" Almas
Admittedly, it's a little early to close the book on Andrade "Cien" Almas's WWE run, but one thing that can't be disputed is that the star's career has taken quite a tumble since he left CMLL last year.
In CMLL, Almas - known as "La Sombra" - was arguably the hottest young talent in all of Mexico. At only 25 years old, he was still at peak athleticism and physical capacity, but he had already headlined enough major shows to have the air of superstardom. His charisma made for a total package that meant he could be a superstar for decades to come.
Instead, Almas decided to try his luck in WWE. Knowing that he was leaving, he volunteered to lose his mask to Atlantis, and once he joined NXT, he was repackaged. He debuted on TV earlier this year, and when he was forced to feud with popular heels, he didn't get over as a babyface.
A recent heel turn may change Almas's fortunes, but he's got a long way to go before leaving CMLL starts to look like a good idea.