Middleweight titlist Gennady Golovkin's goal for years has been to unify belts, but boxing's most fearsome puncher has not been able to convince any of the other belt holders or big names to face him.

NEW YORK -- Gennady Golovkin delivered yet another big drama show, and another one-sided one, as he knocked out David Lemieux in the eighth round to unify middleweight world titles Saturday night ...