US Open foes Taylor Townsend and Jelena Ostapenko get into a tense back-and-forth after match

“She told me I have no class, no education, and to see what happens when we get outside the U.S.,” Townsend, who is from Chicago, said after her 7-5, 6-1 victory over 2017 French Open champion Ostapenko, who is from Latvia. After the two players met at the net for a postmatch handshake, they stayed...