Las Vegas, Nevada — Manny Pacquiao did Saturday night (yesterday in Manila) what he could not in their previous bouts, flooring American rival Timothy Bradley twice on his way to a masterful 12-round unanimous decision in their welterweight war at the MGM Grand, here. As retirement beckons for the 37-year-old Pacquiao, holder of an unprecedented eight world titles in as many weight classes, the Filipino put on a show of force against Bradley, scoring knockdowns in rounds seven and nine. The three judges, Burt Clements and Dave Moretti, both from Las Vegas and Steve Weisfeld of New York, all agreed in scoring 116-110 for Pacquiao, whose last fight was a disappointing decision defeat to Floyd Mayweather. GOODBYE, BOXING. HELLO, SENATE – Filipino boxing icon Manny Pacquiao (left) throws a right jab to set up his patented left straight that floored American Timothy Bradley towards the end of the seventh round [...]