AAA has updated its TripleMania 34 lineup, with championship matches and a showdown that could end Omos’ time in the promotion.

The two-night event begins on Friday, September 11, at the MGM Grand Garden Arena in Las Vegas, before heading to Arena CDMX in Mexico City on Sunday, September 13.

Rey Mysterio faces Omos on the opening night with major consequences attached. An Omos victory will lift his AAA suspension, while a win for Mysterio will see the giant banned from AAA forever.

Roxanne Perez and Nattie will also compete on Night One, joining Faby Apache and La Hiedra in a four-way match to determine the number one contender for the Reina de Reinas Championship. The contest also has ties to AAA and NXT’s When Worlds Collide event.

The announced September 11 card features:

• Rey Mysterio vs. Omos, with Omos’ AAA future at stake.
• Roxanne Perez vs. Nattie vs. Faby Apache vs. La Hiedra in a Reina de Reinas Championship number one contender’s match.
• Psycho Circus (Dave the Clown, Murder Clown and Panic Clown) vs. Los Perros del Mal (Daga, Angel and Berto) for the AAA World Trios Championship.

Night Two brings three more championship contests, including Dominik Mysterio defending the AAA Mega Championship against El Grande Americano.

The announced September 13 card features:

• Dominik Mysterio vs. El Grande Americano for the AAA Mega Championship.
• Flammer vs. La Catalina for the Reina de Reinas Championship.
• Rey Fenix vs. Jack Cartwheel vs. Nathan Frazer vs. Mini Vikingo for the AAA World Cruiserweight Championship.

El Carnicero will also face Psycho Clown in a Street Fight, although AAA has yet to confirm which night will host the match. A Copa Bardahl match is also planned, with its participants and night still to be announced.