WrestleMania XXVI
Along with WrestleMania XXVI, a series of events grouped as "WrestleMania Week" were held in the week preceding the event. To begin promotion for the event in Glendale, a "Kick-off Party" was held at the Westgate City Center on March 19, which included appearances from WWE wrestlers, autograph signings and live entertainment along with a giant LED screen viewing of that night's episode of "SmackDown". The third annual "WrestleMania Art" (formerly "WrestleManiArt"), an art exhibition and auction featuring work by WWE superstars, was held on March 24 at the Make-A-Wish Foundation National Headquarters. WrestleMania's annual fan convention, WrestleMania Axxess, was held from March 25 through March 28 at the Phoenix Convention Center. On March 27, WWE hosted its annual WWE Hall of Fame ceremony at the Dodge Theater, where the Class of 2010 were inducted.
Triplemanía XXIII
The Triplemanía XXIII show featured six professional wrestling matches with different wrestlers involved in pre-existing scripted feuds, plots and storylines. Wrestlers portrayed either heels (referred to as "rudos" in Mexico, those that portray the "bad guys") or faces ("técnicos" in Mexico, the "good guy" characters) as they followed a series of tension-building events, which culminated in a wrestling match or series of matches. On July 1, 2015, AAA Vice President Dorian Roldán announced via Twitter that the 23rd annual Triplemanía show would be held on August 9 in Arena Ciudad de México in Mexico City, Mexico. The show was announced as being available on Internet pay-per-view both in and outside of Mexico. On July 22, it was announced that the event would also be available on cable and satellite PPV in the United States and Canada, making it the first AAA event to air live on American PPV since When Worlds Collide in 1994.
Ever since Myzteziz (then known as Místico) rise in popularity early in the 21st century parallels were drawn between "El Principe de Oro y Plata" ("The Prince of Gold and Silver") and Rey Mysterio Jr. both in regards to their ring style, skill level and popularity. Myzteziz would become the most popular "Luchador" in Mexico during the first decade of the 21st century while Rey Mysterio would become the most popular "luchador" outside of Mexico in the same time period. When Myzteziz joined the WWE under the name Sin Cara in 2011, the idea that the two could face off became a possibility. By mid-2012 wrestling magazine and news websites reported rumors of a Rey Mysterio/Sin Cara possibly taking place at WrestleMania 28 but due to injuries to Rey Mysterio the match did not happen. When Mysterio returned from his injuries in later 2012 he began teaming with Sin Cara on a regular basis, leading once again to speculations that the two might wrestle each other at WrestleMania 29, possibly in a "Lucha de Apuestas", or bet match with their masks on the line. The duo teamed regularly throughout the second half of 2012, including a tournament to determine the #1 contenders for the WWE Tag Team Championship, a tournament that Rey Mysterio and Sin Cara lost in the finals to "The Rhodes Scholars" (Cody Rhodes and Damian Sandow) at the 2012 pay-per-view. In the wake of their loss rumors of a WrestleMania 29 match arose again, this time with the added rumors that the WWE wanted to use the match to set a record for the most masked fans in one location as well as transitioning the role of the WWE's top Latino wrestler from Rey Mysterio to Sin Cara. Unfortunately Mysterio was forced to take time off once again in March 2013 due to another knee injury. At this point in time it was reported that Rey Mysterio did not intend to sign another contract with the WWE, putting an end to the rumored Rey Mysterio vs Sin Cara match for the time being. In 2014 Sin Cara left the WWE and began working for AAA in Mexico under the name Myzteziz. In February 2015 the WWE announced that Rey Mysterio's contract had expired. A few days later it was announced that he had signed with AAA and would team up with Myzteziz in the main event of the 2015 Rey de Reyes ("King of Kings") show against El Hijo del Perro Aguayo and Pentagón Jr., a match that the reunited team of Mysterio and Myzteziz won when Mysterio Jr. scored the pin. On May 24, 2015 Myzteziz, Rey Mysterio Jr. and El Patrón Alberto formed a "Dream team" to win the Lucha Libre World Cup. On July 10, 2015 AAA announced that the "dream match" between Rey Mysterio Jr. and Myzteziz would finally take place and that it would be the main event of Triplemanía XXIII.
In early 2015 AAA Mega Champion El Patrón Alberto found himself with an American "invader" challenging him in the form of Brian Cage, who had worked indirectly for AAA through Lucha Underground up until that point. Cage was immediately positioned as a challenger for El Patrón as he, El Hijo de Fantasma and Pentagón Jr. defeated El Patrón Alberto, Fénix and Myzteziz in his AAA debut match on February 27 when Cage pinned Alberto. El Patrón was scheduled to defend the Mega Championship against Cage as part of the 2015 Rey de Reyes show slated for March 15. however, when Guadalajara was hit with a rainstorm, AAA postponed the event for 24 hours and moved it indoors to "Auditorio Benito Juarez" in Zapopan, Jalisco. The following day AAA announced that they were not able to get all permits in time for the show due to it being it being a national holiday, and once again postponed the show to Wednesday March 18 instead. At the same time they announced that the announced match between El Patrón Alberto and Brian Cage had been cancelled. El Patrón Alberto later stated that he was legally obligated to compete in Australia later in the week and thus was not able to work the Wednesday show for AAA. On April 1 Cage defeated El Patrón in a Street Fight after members of "La Sociedad" interfered in the match to help Cage win the match, after which Cage once again challenged El Patrón to the title match he never received. A few weeks later the two faced off again in a one-on-one match, but this time it ended in a no-contest after interference from Dark Cuervo and Dark Scoria, which then brough out Jack Evans and Angélico turning it into a six-man tag team match that El Patrón, Evans and Angélico won when El Patrón pinned Cage. The two rivals found themselves on opposite sides in the Lucha Libre World Cup, with the "Dream team" of El Patrón, Rey Mysterio Jr. and Myzteziz defeated the team of Cage and Ring of Honor representatives Moose and ACH in the second round of the tournament. El Patrón was finally able to defend the Mega Championship against Cage at AAA's 2015 Verano de Escándalo show. The match saw interference from Cage's corner man El Texano Jr. as well as the "rudo" referee El Hijo del Tirantes favoring Cage throughout the match to stack the odds against El Patrón in the end a second, impartial referee came to the ring and declared a disqualification, leaving the issues between the two unresolved. After the match an enraged El Patrón Alberto laid out a challenge for a "Lucha de Apuestas" match against Cage, stating that he did not care if he had to put his title on the line, wrestle in a steel cage or whatever it would take to get Cage to put his hair on the line in a match. Next AAA paired up El Patrón and Cage to fight against Blue Demon Jr. and Villano IV in a "Pareja Increibles" ("Incredible pairs") match, forcing two sets of rivals to team up for a match. As expected El Patrón and Cage were not able to get along, with Cage attacking El Patrón and throwing him through a table at ringside to allow Blue Demon Jr. and Villano IV to win the match. On the AAA television taping on July 10, 2015 Cage accepted the "Lucha de Apuestas" challenge made repeatedly by El Patrón Alberto. During the English language "Triplemanía XXIII Countdown Special" it was revealed that Alberto had stated that if he lost to Brian Cage he would leave AAA.