Lin Zhu upset top-seeded Zhang Shuai 7-6 (3), 4-6, 6-1 at the Jiangxi Open on Friday to advance to the semifinals to take on sixth-seeded Saisai Zheng.
The 2 1/2-hour match saw a lot of drama, and Zhang committed 50 unforced errors and eight double faults over the course of the marathon match.
It’s been more than 2 years since Zhu has appeared in a semifinal on the WTA tour.