Frances Tiafoe, set to face Taylor Fritz in an all-American US Open semifinal, believes the era of unbeatable tennis stars is over. The 20th seed, who reached the semifinals in 2022, is enjoying the new landscape of unpredictability that has seen top players like Djokovic, Alcaraz, and Federer fall short of expectations. Tiafoe and Fritz will make history as the first American men to clash in a US Open semifinal since 2005, adding to the excitement of this year’s tournament.