Watch some of the top moments in the knockout career of rising superstar Gennady Golovkin. Golovkin vs. Rubio happens Sat., Oct. 18 at 10pm ET/PT on HBO.
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Watch some of the top moments in the knockout career of rising superstar Gennady Golovkin. Golovkin vs. Rubio happens Sat., Oct. 18 at 10pm ET/PT on HBO.