Official coverage from the StubHub Center in Carson, Calif. as WBA middleweight champion Gennady Golovkin (30-0, 27 KO’s) and former world title challenger and interim WBC champion Marco Antonio Rubio (59-6-1, 51 KO’s) weigh in ahead of their HBO-televised showdown.

Chris Robinson can be reached at CRobinson@hustleboss.com