Production
Background
Worlds Collide is a series of professional wrestling shows that began on January 26, 2019, when the American promotion WWE held an interbrand tournament featuring wrestlers from NXT, and the now-defunct NXT UK and 205 Live brands; [1] [2] [3] WWE later held Worlds Collide events in 2020 and 2022. [4] [5] On June 7, 2025, at the Kia Forum in Inglewood, California, WWE held a fourth Worlds Collide event in collaboration with the Mexican promotion Lucha Libre AAA Worldwide (AAA). [6] WWE had previously announced its intention to acquire AAA; the deal finalized on August 1, 2025. [7] On August 16, 2025, during Triplemanía XXXIII, it was announced that WWE and AAA would hold a second Worlds Collide event on Friday, September 12, 2025, at the Cox Pavilion at the Thomas & Mack Center in the Las Vegas suburb of Paradise, Nevada. [8] [9]
Worlds Collide: Las Vegas will be held as part of Mexican independence day weekend, a major weekend for Mexican combat sports. During the weekend, WWE's parent company TKO Group Holdings will promote the Canelo Álvarez vs. Terence Crawford boxing match on September 13 at the Allegiant Stadium in Las Vegas under the Zuffa Boxing banner. [10]
Storylines
The event will include professional wrestling matches that result from scripted storylines. Results will be predetermined by writers of the participating promotions, while storylines will be produced on WWE's weekly television programs, Raw , SmackDown , and NXT , as well as at other WWE and AAA events. [11] [12] [13]
After winning the AAA Mega Championship at Triplemanía Regia III, El Hijo del Vikingo appeared at the AAA Alianzas event on July 25, addressing the crowd before being interrupted by Dragon Lee and El Grande Americano. Later, a masked figure would attack all three men before revealing himself as Dominik Mysterio, who announced his intentions of challenging for the title. This led to a four-way match at Triplemanía XXXIII on August 16, where Vikingo pinned Mysterio to retain the title after interference from Mysterio's rival AJ Styles. [14] A day later, Mysterio stated that he would see Vikingo at Worlds Collide: Las Vegas, [15] and a match between both men for the title was subsequently made official. [16]