Heather Watson continued her surprise run at the Tianjin Open by beating Magda Linette to reach the semi-finals after saving four match points on Friday.
The Brit had not won a hard-court match on the WTA Tour for over a year before this week, but is two wins away from being crowned champion after a 7-5 6-7 (4-7) 7-6 (8-6) victory over the eighth seed.
World number 125 Watson was taken the distance after seeing a match point come and go in the second set and forced a tie-break after Linette had four chances to wrap up the quarter-final.
The unseeded Watson eventually prevailed by securing a ninth mini-break in the final set and will face Veronika Kudermetova in the last four.
Russian Kudermetova toppled third seed Dayana Yastremska 6-4 6-0 in a battle of heavy hitters.
There will be no seeds in the semi-finals after Ons Jabeur defeated Yulia Putintseva 7-6 (7-5) 7-6 (7-4).
Jabeur will come up against Rebecca Peterson with a place in the final at stake following the Swede's 6-7 (5-7) 6-4 6-2 success against home hope Wang Yafan.