Demetrious sign with #ONEchampionship in 2019. Was on a 3 fight win streak , when in April 2021, he lost the challenge for the title to Adriano via knee in round 2. ( Knee to a down opponent is allowed in ONE ).
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26Aug2022, in #ONE160 the much awaited rematch with Adriano, In R4 Demetrious secure the victory via jumping left knee, after he connected with a counter right hand that send Adriano peddling backwards

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