Naomi Osaka fought back from a set down to defeat Bianca Andreescu at the China Open on Friday - ending the US Open champion's 17-match winning streak.
Former world number one Osaka advanced to the semi-finals with a 5-7 6-3 6-4 victory in just over two hours in Beijing.
Japan's Osaka, 21, will face defending champion Caroline Wozniacki in the last four.
Top seed Ashleigh Barty will take on Kiki Bertens in the other semi-final.
Teenager Andreescu charged into a 5-1 lead in the first set, but Osaka fought back to draw level on 5-5.