Gennady Golovkin battered gutsy Gabriel Rosado on the way to a seventh-round technical knockout on Saturday to remain unbeaten and retain his World Boxing Association middleweight world title.
Kazakhstan's Golovkin, who lives in Germany and was fighting in the United States for the second time, poured on the pressure from the opening bell until Rosado's corner threw in the towel and referee Steve Smoger officially stopped the bout at 2:46 of the seventh.
The hard-punching middleweight improved to 25-0 with 22 victories inside the distance.
Fighting in the Theater at Madison Square Garden, the 30-year-old Golovkin notched a second-straight convincing win in front of US fans, following up his punishing fifth-round knockout of Grzegorz Proksa in September and positioning himself for a shot at World Boxing Council champion Sergio Martinez.
Even Golovkin's jabs rocked Rosado, who fought gamely despite the blood that was pouring from the cut over his eye and from his nose by the sixth round.
Before the seventh, his corner asked if they should stop the fight and he said no.
But as seconds ticked away in the seventh and he was unable to respond effectively to Golovkin's punches, they called a halt.
Philadelphia's Rosado fell to 21-6-0.