By Dan Ambrose: WBA Super World middleweight champion Gennady Golovkin (31-0, 28 KOs) wasted little time of dispatching challenger Marco Antonio Rubio (59-7-1, 51 KOs) last Saturday night in taking him out in two blistering rounds in front of 9,323 boxing fans at the StubHub Center in Carson, California.
Golovkin hit Rubio with a left hook to the head that dropped him for the 10 count. The stoppage was so sudden and unexpected that it led to many of the StubHub Center fans booing the end, because they wanted to see the fight continued.