UFC 259 by becoming the promotion’s first ever champion to lose his title by disqualification.Yan was defending his bantamweight strap against Aljamain Sterling in Las Vegas on Saturday night and was ahead on two of the three judges’ scorecards when the fight moved into the fourth round.The Russian seemed to be in full control, but he soon found himself disqualified for landing a bizarre illegal knee to the head of Sterling in the fourth.With Sterling crouched to the ground, Yan unleashed a brutal knee that snapped his opponent’s head back and sent him tumbling to the floor.Referee Mark Smith had warned him that the Jamaican-American was a downed fighter with at least one knee on the canvas, meaning his strike was considered a deliberate.
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