By: Sam Palmer
The world of lucha libre has lost one of its most beloved sons, as Rey Misterio Sr., uncle of WWE Hall of Famer Rey Mysterio and great uncle of Dominik Mysterio, has passed away at age 66. Mexican promotion AAA broke the news via X, with a heartfelt caption in Spanish that translates to; "We regret the sensitive death of Miguel Ángel López Días, known as Rey Mysterio Sr. We send our most sincere condolences to his loved ones and raise our prayers to heaven for his eternal rest."