NEW YORK—When Taylor Fritz, a 26-year-old from California, and Frances Tiafoe, a 26-year-old from Maryland, strode under the Arthur Ashe Stadium lights Friday night for the first U.S. Open semifinal matching two American men in 19 years, the crowd might have been forgiven for not knowing which to support.
There was a burst of clapping right before the initial point, a curtain-raiser befitting the show about to unfold. Once the contest got going, maybe the momentum shifts made it tough to choose between a pair of close pals who’ve known each other since they were playing tournaments for kids younger than 14.
