Two weeks in a row, UFC events saw fights end due to illegal knees. At UFC 259, Petr Yan lost the bantamweight title when he was disqualified for hitting Aljamain Sterling with an illegal knee. A week later, Eryk Anders hit Darren Stewart with one – but spared the DQ loss and instead just had to deal with a no contest. Both knees were illegal – but one was more illegal than the other.
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Video: Is there anything MMA can do about varying rule interpretations? – MMA Junkie