Just a couple of months ago, WWE announced that AAA TripleMania 34 would be a two night event, with one taking place in Las Vegas' Luxor venue on September 11, while the second would take place in Arena Ciudad de Mexico in Mexico City on September 13. As it turns out, WWE believes they've misjudged when it comes to holding Night One in the Luxor, and is now moving the event to a bigger venue. In a Thursday morning press release, WWE revealed Night One of TripleMania would now be held in Vegas' MGM Grand Garden Arena. No matches have been announced for either night of TripleMania 34 at this time, though it's anticipated that AAA Mega Champion Dominik Mysterio will be defending the championship against El Grande Americano. Mysterio is advertised as appearing on both nights, alongside AAA GM Rey Mysterio, Psycho Clown, La Catalina, AAA World Cruiserweight Champion Rey Fenix, and El Hijo del Vikingo.