Golovkin keeps twin crowns, longest reign as middleweight

Gennady Golovkin equaled the record of 20 straight world middleweight title defenses with a devastating second-round knockout of Vanes Martirosyan on Saturday to retain his WBA and WBC belts.

Golovkin ended the fight with a vicious series of right and left combinations that floored the heavy underdog Martirosyan, who appeared doomed from the outset of the hastily arranged fight at the StubHub Center.

“The first round I was just looking, because I know he is a good fighter,” the 36-year-old Golovkin said. “The second round it was true business.”

Martirosyan was in big trouble from the beginning of the second round as Golovkin rendered the challenger helpless by landing a right uppercut on the chin.