Rey Misterio Sr., whose career began in 1976 with a debut performance on “Day of the Kings,” rose to prominence as one of the most respected figures in lucha libre. Throughout his career, he worked with renowned wrestling promotions like Lucha Libre AAA Worldwide, Pro Wrestling Revolution, and the World Wrestling Association, where he claimed multiple titles, including the prestigious IWC World Middleweight Championship, which he won twice. Beyond his accomplishments in the ring, Misterio Sr. was also a highly regarded trainer. He played a crucial role in shaping the careers of his son, nephew, and other notable wrestlers like Halloween and Hayabusa. Despite retiring in 2009, he made occasional appearances, with his final match taking place in April 2023 in California, where he participated in a six-man tag-team event, leaving fans with a memorable performance.

As of now, the cause of Rey Misterio Sr.'s death has not been disclosed. However, his contributions to the world of professional wrestling will forever be celebrated. His influence extends beyond his personal achievements, as he nurtured a new generation of wrestling talent that continues to carry his legacy forward. Rey Misterio Sr.’s passing marks the end of a remarkable era in the world of lucha libre, but his impact on the sport and its global appeal ensures his memory will endure. Fans and colleagues alike are remembering him as a trailblazer who paved the way for many and whose dedication to wrestling remains an inspiration. His life and career stand as a testament to his passion for the sport, securing his place as a legend in the annals of wrestling history.