One Championship made a blockbuster announcement on Monday night, revealing that October 13's stacked "Century" show will feature two cards on the same day.
The two "full-scale world championship events" at the famed Ryogoku Kokugikan will each feature 11 fights, One CEO Chatri Sityodtong revealed in a Facebook post.
One will air live on US television for the first time, with the Sunday morning show to be broadcast on network giant TNT in a Saturday night prime time slot, as well as "other select countries", according to Chatri.
The evening Tokyo show will air live across more than 140 countries, as part of a huge double header for the Asian MMA organisation's 100th event.
Chatri said he would announce the full fight cards soon. But several huge bouts have already been revealed.
Angela Lee will defend her atomweight title in a rematch against Xiong Jingnan, after falling short in a bid to claim the strawweight championship from the Chinese "Panda" in Tokyo at the end of March.
"The Burmese Python" Aung La Nsang puts his light heavyweight title on the line against heavyweight champion Brandon Vera, while bantamweight champion Bibiano Fernandes and Kevin "The Silencer" Belingon look to finally settle their storied rivalry in their fourth encounter.
Former UFC stars Eddie Alvarez and Demetrious Johnson are also in action, taking on Saygid "Dagi" Guseyn Arslanaliev and Danny "The King" Kingad in their respective lightweight and flyweight grand prix finals.
The One featherweight kick-boxing grand prix tournament will also be settled - "The Doctor" Giorgio Petrosyan goes up against Frenchman Samy "AK47" Sana with US$1 million on the line.
There will be four "Japan Super Fights" between champions of Japanese MMA promotions Shooto and Pancrase, too.
Pancrase strawweight champion Daichi Kitakata faces Shooto strawweight king Yosuke Saruta, while Bellator veteran Rafael Silva of Pancrase takes on Shooto's Shoko Sato.
Lightweight titlists Takasuke Kume and Koshi Matsumoto clash, with Hiroyuki Tetsuka going against UFC veteran Hernani Perpetuo.
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