Updated: Wawrinka wins in 4 sets, into US Open quarters

NEW YORK — The Latest on the U.S. Open (all times local): 4 p.m. Two-time major champion Stan Wawrinka blew a lead, smashed a racket and eventually pulled out a four-set victory to reach his fourth straight U.S. Open quarterfinal. After saving a match point in a five-set win in his last outing, Wawrinka was […]