Fastest KO: Golovkin KOs Rubio in 2nd roundGennady Golovkin of Kazakhstan has knocked out Marco Antonio Rubio in the second round of the middleweight title unifying fight in Carson, California.
Golovkin might face Macklin for WBC titleWBA (Super) and IBO middleweight champion Gennady Golovkin from Kazakhstan might face Matthew Macklin of Ireland once again.