Dr. Wagner
El Canek returned to CMLL almost a decade later, on March 26, 2005 teaming with Shocker and Máscara Mágica to defeat the trio of El Terrible, Rey Bucanero and Último Guerrero in the main event of CMLL's weekly "Super Viernes". A few days later Canek's son El Hijo del Canek made his CMLL debut as well, running in during a match where Universo 2000 was about to tear the mask off his father. Upon his return to CMLL El Canek began a storyline feud with former partner Dr. Wagner Jr., with the story being that Dr. Wagner Jr. still resented Canek for leaving years earlier. As part of the storyline Dr. Wagner Jr. defeated El Canek to win the UWA World Heavyweight Championship on June 18, 2004. A few weeks later Canek got a measure of revenge as he, Black Warrior and Rayo de Jalisco, Jr. defeated Dr. Wagner Jr. Black Tiger III and Universo 2000 to win the CMLL World Trios Championship. The storyline between Canek and Dr. Wagner Jr. led to them being included in a four-way "Luchas de Apuestas" match, the main event of the CMLL 71st Anniversary Show, that also included Universo 2000 and Rayo de Jalisco. Dr. Wagner Jr. escaped from the match with his mask safe by pinning Canek, while Rayo de Jalisco pinned Universo. In the end Universo 2000 was disqualified and thus had to unmask as a result. Weeks later Universo 2000 won the 2004 "Leyenda de Azul" ("The Blue Legend") tournament when he eliminated El Canek as the last man out of a field of 16 wrestlers.| The trio of Canek, Black Warrior and Rayo de Jalisco Jr. held the trios championship for 133 days before a team known as "La Furia del Norte" (Héctor Garza, Tarzan Boy and El Terrible) defeated them for the championship on November 19, 2004. The feud with Dr. Wagner Jr. continued to develop, including Dr. Wagner Jr. successfully defending the UWA World Heavyweight Championship against El Canek on December 21, 2004. Over the next year the storyline with Dr. Wagner Jr. was partially abandoned as Dr. Wagner Jr. turned "tecnico" as part of a different storyline. El Canek remained with CMLL until early 2006.