Francis tifo into US Open semifinals as grigor demitro hurt ESPN Francis tifo Advanced to the US Open semi-finals after grigor demitro retired due to injury TFO and Taylor Fritz set up an All-American semifinal ensuring a US finalist for the first time in 18 years tifo previously a semi-finalist in 2022 expressed mixed feelings about winning due to dimitrov's injury meanwhile Fritz secured his spot by defeating Alexander Zev marking his first major semi-final appearance their semi-final Clash will be the first between American men at a grand slam since 2005 promising an exciting match