WWE's AJ Styles Returns to TNA at Slammiversary 2025 in Long Island

At the 2025 TNA Slammiversary event held at UBS Arena, Leon Slater captured the X-Division Championship by defeating Moose, becoming the youngest champion in TNA history. WWE Superstar AJ Styles made a highly anticipated return to TNA after more than a decade, delivering an emotional promo praising Slater's talent and resilience, and reaffirming his connection with the company where his name was built. Styles reflected on his career prior to the event, sharing advice he would give his younger self about humility, perseverance, and trusting the timing of life's challenges. TNA President Carlos Silva confirmed Styles' return, which was seen as both a celebration of his legacy and a boost to the ongoing TNA-WWE collaboration, with speculation about future storylines involving Styles. Fellow TNA star Frankie Kazarian welcomed Styles back while asserting his own status as the "new king of TNA," highlighting a potential rivalry. Styles’ comeback was widely viewed as a symbolic moment for TNA’s resurgence and a renewal of fan enthusiasm for the promotion.