The 22-year-old was 9-8 up in a deciding 10-point tie-break and just had to lift the ball over the net into an empty court to win.

22-year-old Gauff had never previously gone beyond the fourth round at Wimbledon, where she made her breakthrough in 2019

The Czech is into the last four after a stunning performance against Osaka, who, like Muchová, enjoyed the best Wimbledon of her career.