Gennady Golovkin - ALL 33 KO's

Gennady Gennadyevich Golovkin (born 8 April 1982) is a Kazakhstani professional boxer who currently holds the unified WBA (Super), WBC, IBF, and IBO middleweight titles. As of May 2017, he is ranked as the world's best middleweight by BoxRec and the Transnational Boxing Rankings Board (TBRB), and second best by The Ring. He is also ranked as the world's second best active boxer, pound for pound, by The Ring; and fifth by BoxRec and the TBRB