For the first time in over 20 years, there were two American semifinalists in both men’s and women’s tournaments at the U.S. Open. One of them was Frances Tiafoe, an alumnus of the Junior Tennis Champions Center in College Park, Maryland. VOA Russian visited the center, where Tiafoe still trains between tennis tournaments. Rafael Saakov and Karina Bafradzhian have the story, narrated by Anna Rice. Camera: Sergii Dogotar.