Rubio (59-6-1, 51 KOs) will challenge Golovkin (30-0, 27 KOs) on October 18 at the StubHub Center in nearby Carson.
Nicknamed “The Poison,” Rubio is a hardened battler and the epitome of a professional.
A victor in six consecutive bouts since losing a unanimous decision to Julio César Chávez, Jr., Rubio captured the interim WBC middleweight title by knocking out Domenico Spada on April 5.
“The moment they offered the challenge I accepted,” said Rubio, 34, who has thrown fists with respected professionals Carlos Baldomir, Frankie Randall, Kelly Pavlik and Chavez Jr.
“The purpose is to be a champion. I could be fighting in Mexico defending my title 10-15 times. I am willing to take the challenge and risk. GGG is the best and that’s why we’re here. If I beat him that will make me the best middleweight!”
Comparatively, Golovkin scored a third round TKO triumph over Australian Daniel Geale to successfully defend the WBA and IBO middleweight belts in July at Madison Square Garden.
Golovkin floored the 33-year-old Geale (30-3, 16 KOs) in the second and then continued to mercilessly stalk the bleeding Aussie.
Sensing a beaten man, Golovkin exchanged punches with Geale in the third and landed a savage right hand that again sent the former two-time middleweight champion to the canvas.
Dismissing Geale’s ability to regain his footing, referee Michael Ortega compassionately halted the scrap at 2 minutes and 43 seconds of the decisive frame.
“I want to thank Marco Antonio Rubio and Robert Garcia,” said Golovkin, 32, who earned silver as a Kazakhstani at the 2004 Olympics in Athens, Greece.
“I know they are a very strong team. I know my coach Abel Sanchez and Ben Lira are also strong. I promise we will have a good fight. This will be a big present for Southern California boxing fans.”
A bruising, ferocious and accurate slugger, Golovkin has never been toppled in over 375 contests.
Although Rubio possesses cement hands that could endanger the “Good Boy,” Golovkin is a once-in-a-generation middleweight who won’t be stopped.
Accordingly, expect Gennady Golovkin to finish Marco Antonio Rubio within 21 minutes this autumn as “a big present for Southern California boxing fans.”