Around 4,500 fans watched on in the Estadio de la Ceramica as Cazorla was unveiled in dramatic fashion by Yunke the magician.
But Cazorla is now fit and ready to end his two-year absence from the game.
The magician filled a human-sized glass cylinder full of smoke and when the fog cleared there was Cazorla - to the delight of the Villarreal fans.
The capsule is then opened and Santi is out to wave at the Villarreal fans who have turned up to see him. t's utterly mental but as far as unveilings go, it's well and truly set the bar.
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As the thick white smoke dispersed, the 33-year-old midfield magician was stood inside the tube with his arms folded and a grin on his face.
He joined Arsenal a year later, going on to make 129 appearances for the Gunners, scoring 25 goals and winning the FA Cup twice.
The ex-Spain global came through the Villarreal youth ranks but left the club for Malaga in 2011.
"It's been a very special day, returning home", he added.
But injury struggles in recent years have limited his appearances, and in the past two seasons, he only pulled on an Arsenal shirt 11 times. "I'm grateful to Villarreal, not just for how they opened the doors to me when I was 18, but for their unconditional support through hard moments and for re-opening the doors to me [now]".