It was then announced at the beginning of June that the 33-year-old had done enough to convince the Yellow Submarine to sign him up despite having not played a competitive game for over two years due to a chronic tendon injury.
The Spaniard was revealed by a magician, appearing from thin air inside a glass tube.
And Villarreal marked the return of the 33-year-old in odd fashion by using a magic trick to present him to thousands of the club's fans.
However, a bloke in a waistcoat works his magic and before you know it the smoke fades and Cazorla becomes visible.
The illusionist filled a human-sized glass cylinder with smoke and went on to do hand gestures.
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The ex-Spain worldwide started in the youth team at Villarreal before being sold to Malaga in 2011.
The Spaniard spent six years at Arsenal before being released this summer.
"Today is a very special day for me because I return to what I consider to be my home". "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]".
Villarreal have unveiled the signing of the returning Santi Cazorla by using a weird magic stunt.
"How the president and the club do things here is an example to follow".