Raducanu effectively overtook Boulter with her victory over Naomi Osaka, the four-time major winner, in the second round in Washington. It followed a similarly impressive victory over the seventh-seeded Ukrainian Marta Kostyuk in Raducanu’s first match.

Emma Raducanu has reached the semifinals at the D.C. Open by eliminating Maria Sakkari 6-4, 7-5. Friday's win put Raducanu in the final four at the biggest tournament where she’s made it that far since her surprising 2021 U.

Emma Raducanu beats Maria Sakkari to reach final four in Washington ahead of next months US Open; watch Raducanus semi-final at the Mubadala Citi DC Open live on Sky Sports Tennis on Saturday