>>12942066From wiki:
On the August 12 episode of SmackDown, Arriaga made his WWE debut, taking over the role of Sin Cara from Luis Urive, the former CMLL Místico, who was serving a 30-day suspension for violating WWE's wellness program, and defeated Tyson Kidd.[9][31] Arriaga reprised his role of Sin Cara the following week, taking part in a battle royal to determine the #1 contender to the World Heavyweight Championship, from which he was the last man eliminated by the winner, Mark Henry.[32] On August 20, Urive took back the role of Sin Cara for a live event. At the following tapings of SmackDown, Arriaga once again appeared under the mask.[33][34] On the August 30 episode of SmackDown, Sin Cara defeated Daniel Bryan and attacked Bryan after the match, turning heel for the first time.[35]
At the tapings of the September 16 episode of SmackDown, the original Sin Cara made his return, confronting Arriaga's impostor version of the character.