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A ONE Lightweight World Championship rematch between current champion Ok Rae Yoon and former champion (also 2019 ONE Lightweight World Grand Prix Champion) Christian Lee headlined the event. The pairing previously met at ONE: Revolution in September 2021 where Ok defeated Lee by unanimous decision.
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ONE Championship: Revolution was a Combat sport event held by ONE Championship on September 24, 2021 at the Singapore Indoor Stadium in Kallang, Singapore.
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"ONE on TNT 4" was a Combat sport event held by ONE Championship on April 28, 2021 at the Singapore Indoor Stadium in Kallang, Singapore.
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"ONE on TNT 3" was a combat sport event held by ONE Championship on April 7, 2021 at the Singapore Indoor Stadium in Kallang, Singapore. It was first aired on April 21, 2021.
