Conversation so far:
When was Gennady Golovkin's first fight?
As a youth, Gennady Golovkin would walk the streets picking fights with grown men and be told to fight.
Who were some of the boxers that Gennady Golovkin fought?
Gennady Golovkin has fought Lemieux, Brook, and Jacobs.
Did Gennady Golovkin win the Milton Nunez fight?
Yes, Gennady Golovkin won by KO
What were the CompuStats on the Golovkin Nunez fight?
Who else did Golovkin fight besids Milton Nunez, Lemieux, Brook, and Jacobs?
Gennady Golovkin fought against Canelo Álvarez

Question: Who were boxers he knocked out?
Self-contained rewrite: Who were boxers Gennady Golovkin knocked out?