Just one week later, he lost the title to Castillo on May 14 in a rematch. Pérez still wrestled for WWC. He was injured on February 27, 1979 in a match against José Rivera. He was forced to retire from professional wrestling on March 6 because he was not able to wrestle. Though four months later on July 28, at Bayamon, he teamed up with Jack Veneno to take on the team of Hiro Sasaki and Kengo Kimura only for Veneno and Pérez to lose the match. After this, he retired for four years as a professional wrestler until he returned at WWC Anniversary on September 17, 1983, at the Hiram Bithorn Stadium in San Juan, Puerto Rico to take on Barrabas and defeated him. The next year at WWC Anniversary on September 14, at the same venue, saw Pérez's final match against Leo Burke and Burke defeated him. After this match, he retired as a professional wrestler for good.