Rey Mysterio Sr. is a retired professional wrestler from Mexico, known for his high-flying style and innovative moves. He was born on December 6, 1954, in San Diego, California, and began his wrestling career in the 1970s. Mysterio Sr. gained fame in the Lucha Libre circuit, where he became a prominent figure and helped popularize the sport internationally. Throughout his career, Rey Mysterio Sr. competed in various wrestling promotions, including AAA and WCW. He is the father of Rey Mysterio Jr., who has also achieved significant success in professional wrestling. Mysterio Sr.'s legacy continues to influence many wrestlers today.