Qor sii wadida faqradan - Sergey Kazakov (wuxuu dhashay July 8, 1976) waa nin Ruush ah oo hiwaayad ah oo caan ku ah inuu ku guuleystay Horyaalka Adduunka 2003 iyo Horyaalka Yurub 1998
, 2002 iyo 2004 ee Ragga fudud Flyweight.