Knockouts by knee seem to hover around the ONE Championship flyweight title. In the main event of ONE on Prime Video 1 at Singapore Indoor Stadium in Singapore, Demetrious Johnson got one back on Adriano Moraes, returning the knockout favor by landing a vicious left knee in the fourth round to finish their title fight rematch. Moraes (20-3) landed a knee to the head of Johnson (24-4-1) to win by knockout in their first meeting at ONE on TNT 1, but this time, the script was flipped, and the former UFC flyweight king was certainly pleased with the outcome
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