#5 He made his debut at the age of 14
Rey Mysterio is a veteran when it comes to the business. He has been wrestling for almost three decades now and his career started at a very early age of 14. Rey was born into a wrestling family and this helped him to get training under his uncle, Rey Mysterio Sr.
He adopted the Lucha Libre style in no time and before being given the ring name Rey Mysterio Jr, he wrestled under numerous names like La Lagartija Verde and Colibrí. The first big break for Mysterio came thanks to AAA where he made a name for himself.
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Then, he wrestled for Paul Heyman as mentioned earlier and he broke into the United States scene as well.
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