In a groundbreaking moment for WWE and its sister promotion Lucha Libre AAA Worldwide (AAA), Dominik Mysterio, the reigning WWE Intercontinental Champion, has officially become a double champion by capturing the coveted AAA Mega Championship at the high-stakes Worlds Collide event. This victory marks a significant milestone in Mysterio’s already impressive career, cementing his status as one of the top international wrestling stars of 2025.
The main event of Worlds Collide, held recently on June 7, saw WWE’s Intercontinental Champion Dominik Mysterio step into uncharted territory, facing off against AAA’s defending Mega Champion El Hijo del Vikingo. Prior to the match, Mysterio made his intentions clear in a highly charged confrontation, verbally assaulting Vikingo in a promo aired on WWE’s platforms, signaling his unwavering confidence and readiness to take on the challenge[3]. This cross-promotion clash thrilled fans as it brought together two of the most dynamic young talents from the WWE and AAA rosters.
Following a hard-fought battle combining high-flying maneuvers with technical wrestling expertise, Dominik Mysterio emerged victorious, pinning El Hijo del Vikingo to win the AAA Mega Championship. This win not only added a prestigious lucha libre title to his accolades but also made Mysterio one of the rare athletes in wrestling history to hold major titles in top North American promotions concurrently. Sources close to Mysterio revealed to Fightful that backstage reactions were overwhelmingly positive, praising Dominik’s work ethic and charisma, which are driving his rapid ascent[1][7].
Dominik’s dual-title run adds new dimensions to his character and storylines, both in WWE and AAA. Since winning the Intercontinental Championship at WrestleMania 41 in April by defeating AJ Styles, Finn Bálor, and Bron Breakker in a fatal four-way[1], Mysterio has solidified himself as a premier singles competitor on WWE’s main roster. His continued success was on full display at SummerSlam 2025, where he successfully defended the Intercontinental title against AJ Styles in a match lauded for its homage to wrestling history, featuring strategic moments reminiscent of classic WrestleMania battles[2][6].
Dominik’s unprecedented crossover to AAA began in earnest on July 25 at the Alianzas event, where he stunned fans by attacking both Dragon Lee and AAA Mega Champion El Hijo del Vikingo, setting up the high-stakes clash at Worlds Collide[1]. Since then, his presence in Mexico’s top promotion has created fresh intrigue and excitement among the global wrestling audience, drawing attention to the growing collaboration between WWE and AAA.
Industry insiders suggest that WWE’s strategic use of Mysterio in AAA helps strengthen the partnership between the two entities while propelling Dominik into global superstardom. “Dominik’s ability to connect with fans in both the WWE Universe and Lucha Libre fans is unique,” said a WWE insider. “Holding two of the most prestigious titles in their respective companies speaks volumes about his talent and potential.”[Fightful]
Mysterio’s story is also deeply rooted in wrestling legacy. As the son of legendary Rey Mysterio, Dominik has faced tremendous expectations since his WWE debut. Yet, his recent championship achievements prove he is carving out his own path at just 26 years old[1]. Winning the Intercontinental Championship made him part of the rare father-son duo to hold that title in WWE history and now adding the AAA Mega Championship elevates his standing further on the international stage[4][5].
With the WWE Intercontinental Championship reign now exceeding five months and multiple successful defenses, including at major shows like Backlash and Money in the Bank, Dominik’s momentum shows no signs of slowing down[1]. Meanwhile, speculation abounds about how holding the AAA Mega title will integrate into WWE programming and whether we will see more inter-promotional matches in the near future.
Liv Morgan, a top WWE Superstar and Dominik’s significant other, praised Mysterio’s continued excellence publicly on social media, calling him “the greatest WWE Intercontinental Champion in history,” emphasizing his growing impact and prominence within WWE storylines[2]. Morgan’s support has remained a staple of Dominik’s personal and professional journey, even as she recovers from injury.
Looking ahead, wrestling fans worldwide eagerly anticipate how Dominik’s dual championship status will influence future storytelling, both in the United States and Mexico. His unique position serves as a bridge between two wrestling cultures and showcases the evolving landscape of professional wrestling collaborations.
In summary, Dominik Mysterio’s victory at Worlds Collide to capture the AAA Mega Championship while holding the WWE Intercontinental Championship simultaneously is a historic accomplishment. It signifies his ascent as a global wrestling star and highlights WWE’s expanding influence through cross-promotional storylines. WWE.com, Fightful, and prominent wrestling podcasts have widely covered this breakthrough, all underscoring Dominik’s rising dominance and the promising future he carries.
Sources: WWE.com, Fightful, WrestlingInc.com, WWE Network, social media statements from Liv Morgan, and backstage reports from industry insiders.