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

On a muggy day with the temperature topping 90 degrees Fahrenheit (32 Celsius), Raducanu took a medical timeout while reeling off the last five games of the match after trailing 5-2 in the second set.

Britain's Emma Raducanu qualifies for the semi-finals of the Washington Open after beating wildcard Maria Sakkari in straight sets.

Williams could not overcome 27-year-old Magdalena Frech, 6-2, 6-2, in the second round of the tournament on Thursday, July 24. Williams has not won back-to-back matches since 2019. Venus Williams and Hailey Baptiste won their first-round match in doubles play on Monday, but the duo fell short of reaching the third round.

Venus Williams’ bid for her first winning streak since 2019 has ended with a 6-2, 6-2 loss to 24th-ranked Magdalena Frech at the D