Rey Mysterio Sr., a legendary figure in lucha libre, passed away at 66, leaving behind a rich legacy in professional wrestling. Uncle to WWE Hall of Famer Rey Mysterio Jr. and grand uncle to Dominik Mysterio, his influence spans generations.

With a career that began in the mid-1970s, Mysterio Sr. captivated audiences for over 30 years, embodying the spirit of lucha libre. His death has sent shockwaves through the wrestling community, as tributes pour in from fans and fellow wrestlers alike.

Read on for the full scoop on his life, career, and the indelible mark he left on the wrestling world.